261439620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 288

約数和(自身を含む): 885427200

約数和(自身を除く): 623987580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 23, 26, 30, 38, 39, 46, 52, 57, 59, 60, 65, 69, 76, 78, 92, 95, 114, 115, 118, 130, 138, 156, 169, 177, 190, 195, 228, 230, 236, 247, 260, 276, 285, 295, 299, 338, 345, 354, 380, 390, 437, 460, 494, 507, 570, 590, 598, 676, 690, 708, 741, 767, 780, 845, 874, 885, 897, 988, 1014, 1121, 1140, 1180, 1196, 1235, 1311, 1357, 1380, 1482, 1495, 1534, 1690, 1748, 1770, 1794, 2028, 2185, 2242, 2301, 2470, 2535, 2622, 2714, 2964, 2990, 3068, 3211, 3363, 3380, 3540, 3588, 3705, 3835, 3887, 4071, 4370, 4484, 4485, 4602, 4940, 5070, 5244, 5428, 5605, 5681, 5980, 6422, 6555, 6726, 6785, 7410, 7670, 7774, 8142, 8740, 8970, 9204, 9633, 9971, 10140, 11210, 11362, 11505, 11661, 12844, 13110, 13452, 13570, 14573, 14820, 15340, 15548, 16055, 16284, 16815, 17043, 17641, 17940, 19266, 19435, 19942, 20355, 22420, 22724, 23010, 23322, 25783, 26220, 27140, 28405, 29146, 29913, 32110, 33630, 34086, 35282, 38532, 38870, 39884, 40710, 43719, 46020, 46644, 48165, 49855, 51566, 52923, 56810, 58292, 58305, 59826, 64220, 67260, 68172, 70564, 72865, 73853, 77349, 77740, 81420, 85215, 87438, 88205, 96330, 99710, 103132, 105846, 113620, 116610, 119652, 128915, 145730, 147706, 149565, 154698, 170430, 174876, 176410, 189449, 192660, 199420, 211692, 218595, 221559, 229333, 233220, 257830, 264615, 291460, 295412, 299130, 309396, 335179, 340860, 352820, 369265, 378898, 386745, 437190, 443118, 458666, 515660, 529230, 568347, 598260, 670358, 687999, 738530, 757796, 773490, 874380, 886236, 917332, 947245, 1005537, 1058460, 1107795, 1136694, 1146665, 1340716, 1375998, 1477060, 1546980, 1675895, 1894490, 2011074, 2215590, 2273388, 2293330, 2751996, 2841735, 3351790, 3439995, 3788980, 4022148, 4357327, 4431180, 4586660, 5027685, 5683470, 6703580, 6879990, 8714654, 10055370, 11366940, 13071981, 13759980, 17429308, 20110740, 21786635, 26143962, 43573270, 52287924, 65359905, 87146540, 130719810, 261439620]

約数ペア:

[(1, 261439620), (2, 130719810), (3, 87146540), (4, 65359905), (5, 52287924), (6, 43573270), (10, 26143962), (12, 21786635), (13, 20110740), (15, 17429308), (19, 13759980), (20, 13071981), (23, 11366940), (26, 10055370), (30, 8714654), (38, 6879990), (39, 6703580), (46, 5683470), (52, 5027685), (57, 4586660), (59, 4431180), (60, 4357327), (65, 4022148), (69, 3788980), (76, 3439995), (78, 3351790), (92, 2841735), (95, 2751996), (114, 2293330), (115, 2273388), (118, 2215590), (130, 2011074), (138, 1894490), (156, 1675895), (169, 1546980), (177, 1477060), (190, 1375998), (195, 1340716), (228, 1146665), (230, 1136694), (236, 1107795), (247, 1058460), (260, 1005537), (276, 947245), (285, 917332), (295, 886236), (299, 874380), (338, 773490), (345, 757796), (354, 738530), (380, 687999), (390, 670358), (437, 598260), (460, 568347), (494, 529230), (507, 515660), (570, 458666), (590, 443118), (598, 437190), (676, 386745), (690, 378898), (708, 369265), (741, 352820), (767, 340860), (780, 335179), (845, 309396), (874, 299130), (885, 295412), (897, 291460), (988, 264615), (1014, 257830), (1121, 233220), (1140, 229333), (1180, 221559), (1196, 218595), (1235, 211692), (1311, 199420), (1357, 192660), (1380, 189449), (1482, 176410), (1495, 174876), (1534, 170430), (1690, 154698), (1748, 149565), (1770, 147706), (1794, 145730), (2028, 128915), (2185, 119652), (2242, 116610), (2301, 113620), (2470, 105846), (2535, 103132), (2622, 99710), (2714, 96330), (2964, 88205), (2990, 87438), (3068, 85215), (3211, 81420), (3363, 77740), (3380, 77349), (3540, 73853), (3588, 72865), (3705, 70564), (3835, 68172), (3887, 67260), (4071, 64220), (4370, 59826), (4484, 58305), (4485, 58292), (4602, 56810), (4940, 52923), (5070, 51566), (5244, 49855), (5428, 48165), (5605, 46644), (5681, 46020), (5980, 43719), (6422, 40710), (6555, 39884), (6726, 38870), (6785, 38532), (7410, 35282), (7670, 34086), (7774, 33630), (8142, 32110), (8740, 29913), (8970, 29146), (9204, 28405), (9633, 27140), (9971, 26220), (10140, 25783), (11210, 23322), (11362, 23010), (11505, 22724), (11661, 22420), (12844, 20355), (13110, 19942), (13452, 19435), (13570, 19266), (14573, 17940), (14820, 17641), (15340, 17043), (15548, 16815), (16055, 16284)]