128418420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2699}}^1$

素因数の和:2785

約数の個数: 96

約数和(自身を含む): 393724800

約数和(自身を除く): 265306380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 61, 65, 78, 122, 130, 156, 183, 195, 244, 260, 305, 366, 390, 610, 732, 780, 793, 915, 1220, 1586, 1830, 2379, 2699, 3172, 3660, 3965, 4758, 5398, 7930, 8097, 9516, 10796, 11895, 13495, 15860, 16194, 23790, 26990, 32388, 35087, 40485, 47580, 53980, 70174, 80970, 105261, 140348, 161940, 164639, 175435, 210522, 329278, 350870, 421044, 493917, 526305, 658556, 701740, 823195, 987834, 1052610, 1646390, 1975668, 2105220, 2140307, 2469585, 3292780, 4280614, 4939170, 6420921, 8561228, 9878340, 10701535, 12841842, 21403070, 25683684, 32104605, 42806140, 64209210, 128418420]

約数ペア:

[(1, 128418420), (2, 64209210), (3, 42806140), (4, 32104605), (5, 25683684), (6, 21403070), (10, 12841842), (12, 10701535), (13, 9878340), (15, 8561228), (20, 6420921), (26, 4939170), (30, 4280614), (39, 3292780), (52, 2469585), (60, 2140307), (61, 2105220), (65, 1975668), (78, 1646390), (122, 1052610), (130, 987834), (156, 823195), (183, 701740), (195, 658556), (244, 526305), (260, 493917), (305, 421044), (366, 350870), (390, 329278), (610, 210522), (732, 175435), (780, 164639), (793, 161940), (915, 140348), (1220, 105261), (1586, 80970), (1830, 70174), (2379, 53980), (2699, 47580), (3172, 40485), (3660, 35087), (3965, 32388), (4758, 26990), (5398, 23790), (7930, 16194), (8097, 15860), (9516, 13495), (10796, 11895)]