646156940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 1801820160

約数和(自身を除く): 1155663220

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 23, 26, 38, 44, 46, 47, 52, 55, 65, 76, 92, 94, 95, 110, 115, 121, 130, 143, 188, 190, 209, 220, 230, 235, 242, 247, 253, 260, 286, 299, 380, 418, 437, 460, 470, 484, 494, 506, 517, 572, 598, 605, 611, 715, 836, 874, 893, 940, 988, 1012, 1034, 1045, 1081, 1196, 1210, 1222, 1235, 1265, 1430, 1495, 1573, 1748, 1786, 2068, 2090, 2162, 2185, 2299, 2420, 2444, 2470, 2530, 2585, 2717, 2783, 2860, 2990, 3055, 3146, 3289, 3572, 4180, 4324, 4370, 4465, 4598, 4807, 4940, 5060, 5170, 5405, 5434, 5566, 5681, 5687, 5980, 6110, 6292, 6578, 6721, 7865, 8740, 8930, 9196, 9614, 9823, 10340, 10810, 10868, 11132, 11362, 11374, 11495, 11609, 11891, 12220, 13156, 13442, 13585, 13915, 14053, 15730, 16445, 17860, 19228, 19646, 20539, 21620, 22724, 22748, 22990, 23218, 23782, 24035, 26884, 27170, 27830, 28106, 28405, 28435, 29887, 31460, 32890, 33605, 36179, 39292, 41078, 45980, 46436, 47564, 48070, 49115, 52877, 54340, 55660, 56212, 56810, 56870, 58045, 59455, 59774, 62491, 65780, 67210, 70265, 72358, 73931, 82156, 96140, 98230, 102695, 105754, 108053, 113620, 113740, 116090, 118910, 119548, 124982, 127699, 130801, 134420, 140530, 144716, 147862, 149435, 154583, 180895, 196460, 205390, 211508, 216106, 225929, 232180, 237820, 249964, 255398, 261602, 264385, 267007, 281060, 295724, 298870, 309166, 312455, 361790, 369655, 410780, 432212, 451858, 510796, 523204, 528770, 534014, 540265, 597740, 618332, 624910, 638495, 654005, 687401, 723580, 739310, 772915, 903716, 1057540, 1068028, 1080530, 1129645, 1249820, 1276990, 1308010, 1335035, 1374802, 1404689, 1478620, 1545830, 1700413, 2161060, 2259290, 2485219, 2553980, 2616020, 2670070, 2749604, 2809378, 2937077, 3091660, 3400826, 3437005, 4518580, 4970438, 5340140, 5618756, 5874154, 6801652, 6874010, 7023445, 8502065, 9940876, 11748308, 12426095, 13748020, 14046890, 14685385, 17004130, 24852190, 28093780, 29370770, 32307847, 34008260, 49704380, 58741540, 64615694, 129231388, 161539235, 323078470, 646156940]

約数ペア:

[(1, 646156940), (2, 323078470), (4, 161539235), (5, 129231388), (10, 64615694), (11, 58741540), (13, 49704380), (19, 34008260), (20, 32307847), (22, 29370770), (23, 28093780), (26, 24852190), (38, 17004130), (44, 14685385), (46, 14046890), (47, 13748020), (52, 12426095), (55, 11748308), (65, 9940876), (76, 8502065), (92, 7023445), (94, 6874010), (95, 6801652), (110, 5874154), (115, 5618756), (121, 5340140), (130, 4970438), (143, 4518580), (188, 3437005), (190, 3400826), (209, 3091660), (220, 2937077), (230, 2809378), (235, 2749604), (242, 2670070), (247, 2616020), (253, 2553980), (260, 2485219), (286, 2259290), (299, 2161060), (380, 1700413), (418, 1545830), (437, 1478620), (460, 1404689), (470, 1374802), (484, 1335035), (494, 1308010), (506, 1276990), (517, 1249820), (572, 1129645), (598, 1080530), (605, 1068028), (611, 1057540), (715, 903716), (836, 772915), (874, 739310), (893, 723580), (940, 687401), (988, 654005), (1012, 638495), (1034, 624910), (1045, 618332), (1081, 597740), (1196, 540265), (1210, 534014), (1222, 528770), (1235, 523204), (1265, 510796), (1430, 451858), (1495, 432212), (1573, 410780), (1748, 369655), (1786, 361790), (2068, 312455), (2090, 309166), (2162, 298870), (2185, 295724), (2299, 281060), (2420, 267007), (2444, 264385), (2470, 261602), (2530, 255398), (2585, 249964), (2717, 237820), (2783, 232180), (2860, 225929), (2990, 216106), (3055, 211508), (3146, 205390), (3289, 196460), (3572, 180895), (4180, 154583), (4324, 149435), (4370, 147862), (4465, 144716), (4598, 140530), (4807, 134420), (4940, 130801), (5060, 127699), (5170, 124982), (5405, 119548), (5434, 118910), (5566, 116090), (5681, 113740), (5687, 113620), (5980, 108053), (6110, 105754), (6292, 102695), (6578, 98230), (6721, 96140), (7865, 82156), (8740, 73931), (8930, 72358), (9196, 70265), (9614, 67210), (9823, 65780), (10340, 62491), (10810, 59774), (10868, 59455), (11132, 58045), (11362, 56870), (11374, 56810), (11495, 56212), (11609, 55660), (11891, 54340), (12220, 52877), (13156, 49115), (13442, 48070), (13585, 47564), (13915, 46436), (14053, 45980), (15730, 41078), (16445, 39292), (17860, 36179), (19228, 33605), (19646, 32890), (20539, 31460), (21620, 29887), (22724, 28435), (22748, 28405), (22990, 28106), (23218, 27830), (23782, 27170), (24035, 26884)]