79181920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:752

約数の個数: 96

約数和(自身を含む): 202976928

約数和(自身を除く): 123795008

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 340, 344, 430, 544, 677, 680, 688, 731, 860, 1354, 1360, 1376, 1462, 1720, 2708, 2720, 2924, 3385, 3440, 3655, 5416, 5848, 6770, 6880, 7310, 10832, 11509, 11696, 13540, 14620, 21664, 23018, 23392, 27080, 29111, 29240, 46036, 54160, 57545, 58222, 58480, 92072, 108320, 115090, 116444, 116960, 145555, 184144, 230180, 232888, 291110, 368288, 460360, 465776, 494887, 582220, 920720, 931552, 989774, 1164440, 1841440, 1979548, 2328880, 2474435, 3959096, 4657760, 4948870, 7918192, 9897740, 15836384, 19795480, 39590960, 79181920]

約数ペア:

[(1, 79181920), (2, 39590960), (4, 19795480), (5, 15836384), (8, 9897740), (10, 7918192), (16, 4948870), (17, 4657760), (20, 3959096), (32, 2474435), (34, 2328880), (40, 1979548), (43, 1841440), (68, 1164440), (80, 989774), (85, 931552), (86, 920720), (136, 582220), (160, 494887), (170, 465776), (172, 460360), (215, 368288), (272, 291110), (340, 232888), (344, 230180), (430, 184144), (544, 145555), (677, 116960), (680, 116444), (688, 115090), (731, 108320), (860, 92072), (1354, 58480), (1360, 58222), (1376, 57545), (1462, 54160), (1720, 46036), (2708, 29240), (2720, 29111), (2924, 27080), (3385, 23392), (3440, 23018), (3655, 21664), (5416, 14620), (5848, 13540), (6770, 11696), (6880, 11509), (7310, 10832)]