25980760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2939}}^1$

素因数の和:2980

約数の個数: 64

約数和(自身を含む): 66679200

約数和(自身を除く): 40698440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 2939, 4420, 5878, 8840, 11756, 14695, 23512, 29390, 38207, 49963, 58780, 76414, 99926, 117560, 152828, 191035, 199852, 249815, 305656, 382070, 399704, 499630, 649519, 764140, 999260, 1299038, 1528280, 1998520, 2598076, 3247595, 5196152, 6495190, 12990380, 25980760]

約数ペア:

[(1, 25980760), (2, 12990380), (4, 6495190), (5, 5196152), (8, 3247595), (10, 2598076), (13, 1998520), (17, 1528280), (20, 1299038), (26, 999260), (34, 764140), (40, 649519), (52, 499630), (65, 399704), (68, 382070), (85, 305656), (104, 249815), (130, 199852), (136, 191035), (170, 152828), (221, 117560), (260, 99926), (340, 76414), (442, 58780), (520, 49963), (680, 38207), (884, 29390), (1105, 23512), (1768, 14695), (2210, 11756), (2939, 8840), (4420, 5878)]