71428730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4721}}^1$

素因数の和:4834

約数の個数: 32

約数和(自身を含む): 137693520

約数和(自身を除く): 66264790

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 4721, 7565, 9442, 15130, 23605, 47210, 80257, 160514, 401285, 420169, 802570, 840338, 2100845, 4201690, 7142873, 14285746, 35714365, 71428730]

約数ペア:

[(1, 71428730), (2, 35714365), (5, 14285746), (10, 7142873), (17, 4201690), (34, 2100845), (85, 840338), (89, 802570), (170, 420169), (178, 401285), (445, 160514), (890, 80257), (1513, 47210), (3026, 23605), (4721, 15130), (7565, 9442)]