28008445960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 256

約数和(自身を含む): 73427212800

約数和(自身を除く): 45418766840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 89, 92, 110, 115, 121, 178, 184, 220, 230, 242, 253, 257, 356, 440, 445, 460, 484, 506, 514, 605, 712, 890, 920, 968, 979, 1012, 1028, 1210, 1265, 1285, 1331, 1780, 1958, 2024, 2047, 2056, 2420, 2530, 2570, 2662, 2783, 2827, 3560, 3916, 4094, 4840, 4895, 5060, 5140, 5324, 5566, 5654, 5911, 6655, 7832, 8188, 9790, 10120, 10235, 10280, 10648, 10769, 11132, 11308, 11822, 13310, 13915, 14135, 16376, 19580, 20470, 21538, 22264, 22517, 22616, 22873, 23644, 26620, 27830, 28270, 29555, 30613, 31097, 39160, 40940, 43076, 45034, 45746, 47288, 53240, 53845, 55660, 56540, 59110, 61226, 62194, 65021, 81880, 86152, 90068, 91492, 107690, 111320, 112585, 113080, 114365, 118220, 118459, 122452, 124388, 130042, 153065, 155485, 180136, 182984, 215380, 225170, 228730, 236440, 236918, 244904, 247687, 248776, 251603, 260084, 306130, 310970, 325105, 342067, 430760, 450340, 457460, 473836, 495374, 503206, 520168, 526079, 592295, 612260, 621940, 650210, 684134, 715231, 900680, 914920, 947672, 990748, 1006412, 1052158, 1184590, 1224520, 1238435, 1243880, 1258015, 1300420, 1368268, 1430462, 1710335, 1981496, 2012824, 2104316, 2369180, 2476870, 2516030, 2600840, 2630395, 2724557, 2736536, 2767633, 2860924, 3420670, 3576155, 4208632, 4738360, 4953740, 5032060, 5260790, 5449114, 5535266, 5721848, 5786869, 6841340, 7152310, 7867541, 9907480, 10064120, 10521580, 10898228, 11070532, 11573738, 13622785, 13682680, 13838165, 14304620, 15735082, 21043160, 21796456, 22141064, 23147476, 27245570, 27676330, 28609240, 28934345, 30443963, 31470164, 39337705, 46294952, 54491140, 55352660, 57868690, 60887926, 62940328, 63655559, 78675410, 108982280, 110705320, 115737380, 121775852, 127311118, 152219815, 157350820, 231474760, 243551704, 254622236, 304439630, 314701640, 318277795, 509244472, 608879260, 636555590, 700211149, 1217758520, 1273111180, 1400422298, 2546222360, 2800844596, 3501055745, 5601689192, 7002111490, 14004222980, 28008445960]

約数ペア:

[(1, 28008445960), (2, 14004222980), (4, 7002111490), (5, 5601689192), (8, 3501055745), (10, 2800844596), (11, 2546222360), (20, 1400422298), (22, 1273111180), (23, 1217758520), (40, 700211149), (44, 636555590), (46, 608879260), (55, 509244472), (88, 318277795), (89, 314701640), (92, 304439630), (110, 254622236), (115, 243551704), (121, 231474760), (178, 157350820), (184, 152219815), (220, 127311118), (230, 121775852), (242, 115737380), (253, 110705320), (257, 108982280), (356, 78675410), (440, 63655559), (445, 62940328), (460, 60887926), (484, 57868690), (506, 55352660), (514, 54491140), (605, 46294952), (712, 39337705), (890, 31470164), (920, 30443963), (968, 28934345), (979, 28609240), (1012, 27676330), (1028, 27245570), (1210, 23147476), (1265, 22141064), (1285, 21796456), (1331, 21043160), (1780, 15735082), (1958, 14304620), (2024, 13838165), (2047, 13682680), (2056, 13622785), (2420, 11573738), (2530, 11070532), (2570, 10898228), (2662, 10521580), (2783, 10064120), (2827, 9907480), (3560, 7867541), (3916, 7152310), (4094, 6841340), (4840, 5786869), (4895, 5721848), (5060, 5535266), (5140, 5449114), (5324, 5260790), (5566, 5032060), (5654, 4953740), (5911, 4738360), (6655, 4208632), (7832, 3576155), (8188, 3420670), (9790, 2860924), (10120, 2767633), (10235, 2736536), (10280, 2724557), (10648, 2630395), (10769, 2600840), (11132, 2516030), (11308, 2476870), (11822, 2369180), (13310, 2104316), (13915, 2012824), (14135, 1981496), (16376, 1710335), (19580, 1430462), (20470, 1368268), (21538, 1300420), (22264, 1258015), (22517, 1243880), (22616, 1238435), (22873, 1224520), (23644, 1184590), (26620, 1052158), (27830, 1006412), (28270, 990748), (29555, 947672), (30613, 914920), (31097, 900680), (39160, 715231), (40940, 684134), (43076, 650210), (45034, 621940), (45746, 612260), (47288, 592295), (53240, 526079), (53845, 520168), (55660, 503206), (56540, 495374), (59110, 473836), (61226, 457460), (62194, 450340), (65021, 430760), (81880, 342067), (86152, 325105), (90068, 310970), (91492, 306130), (107690, 260084), (111320, 251603), (112585, 248776), (113080, 247687), (114365, 244904), (118220, 236918), (118459, 236440), (122452, 228730), (124388, 225170), (130042, 215380), (153065, 182984), (155485, 180136)]