245330120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{2207}}^1$

素因数の和:2622

約数の個数: 64

約数和(自身を含む): 632724480

約数和(自身を除く): 387394360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 397, 794, 1588, 1985, 2207, 2779, 3176, 3970, 4414, 5558, 7940, 8828, 11035, 11116, 13895, 15449, 15880, 17656, 22070, 22232, 27790, 30898, 44140, 55580, 61796, 77245, 88280, 111160, 123592, 154490, 308980, 617960, 876179, 1752358, 3504716, 4380895, 6133253, 7009432, 8761790, 12266506, 17523580, 24533012, 30666265, 35047160, 49066024, 61332530, 122665060, 245330120]

約数ペア:

[(1, 245330120), (2, 122665060), (4, 61332530), (5, 49066024), (7, 35047160), (8, 30666265), (10, 24533012), (14, 17523580), (20, 12266506), (28, 8761790), (35, 7009432), (40, 6133253), (56, 4380895), (70, 3504716), (140, 1752358), (280, 876179), (397, 617960), (794, 308980), (1588, 154490), (1985, 123592), (2207, 111160), (2779, 88280), (3176, 77245), (3970, 61796), (4414, 55580), (5558, 44140), (7940, 30898), (8828, 27790), (11035, 22232), (11116, 22070), (13895, 17656), (15449, 15880)]