640562398

素因数分解:

$2^1\times 7^2\times {\mathrm{1409}}^1\times {\mathrm{4639}}^1$

素因数の和:6064

約数の個数: 24

約数和(自身を含む): 1118750400

約数和(自身を除く): 478188002

約数列:

[1, 2, 7, 14, 49, 98, 1409, 2818, 4639, 9278, 9863, 19726, 32473, 64946, 69041, 138082, 227311, 454622, 6536351, 13072702, 45754457, 91508914, 320281199, 640562398]

約数ペア:

[(1, 640562398), (2, 320281199), (7, 91508914), (14, 45754457), (49, 13072702), (98, 6536351), (1409, 454622), (2818, 227311), (4639, 138082), (9278, 69041), (9863, 64946), (19726, 32473)]