128917880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:469

約数の個数: 128

約数和(自身を含む): 361428480

約数和(自身を除く): 232510600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 107, 130, 140, 182, 214, 260, 280, 331, 364, 428, 455, 520, 535, 662, 728, 749, 856, 910, 1070, 1324, 1391, 1498, 1655, 1820, 2140, 2317, 2648, 2782, 2996, 3310, 3640, 3745, 4280, 4303, 4634, 5564, 5992, 6620, 6955, 7490, 8606, 9268, 9737, 11128, 11585, 13240, 13910, 14980, 17212, 18536, 19474, 21515, 23170, 27820, 29960, 30121, 34424, 35417, 38948, 43030, 46340, 48685, 55640, 60242, 70834, 77896, 86060, 92680, 97370, 120484, 141668, 150605, 172120, 177085, 194740, 240968, 247919, 283336, 301210, 354170, 389480, 460421, 495838, 602420, 708340, 920842, 991676, 1204840, 1239595, 1416680, 1841684, 1983352, 2302105, 2479190, 3222947, 3683368, 4604210, 4958380, 6445894, 9208420, 9916760, 12891788, 16114735, 18416840, 25783576, 32229470, 64458940, 128917880]

約数ペア:

[(1, 128917880), (2, 64458940), (4, 32229470), (5, 25783576), (7, 18416840), (8, 16114735), (10, 12891788), (13, 9916760), (14, 9208420), (20, 6445894), (26, 4958380), (28, 4604210), (35, 3683368), (40, 3222947), (52, 2479190), (56, 2302105), (65, 1983352), (70, 1841684), (91, 1416680), (104, 1239595), (107, 1204840), (130, 991676), (140, 920842), (182, 708340), (214, 602420), (260, 495838), (280, 460421), (331, 389480), (364, 354170), (428, 301210), (455, 283336), (520, 247919), (535, 240968), (662, 194740), (728, 177085), (749, 172120), (856, 150605), (910, 141668), (1070, 120484), (1324, 97370), (1391, 92680), (1498, 86060), (1655, 77896), (1820, 70834), (2140, 60242), (2317, 55640), (2648, 48685), (2782, 46340), (2996, 43030), (3310, 38948), (3640, 35417), (3745, 34424), (4280, 30121), (4303, 29960), (4634, 27820), (5564, 23170), (5992, 21515), (6620, 19474), (6955, 18536), (7490, 17212), (8606, 14980), (9268, 13910), (9737, 13240), (11128, 11585)]