64290640

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1163}}^1$

素因数の和:1867

約数の個数: 40

約数和(自身を含む): 149820768

約数和(自身を除く): 85530128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1163, 1382, 2326, 2764, 3455, 4652, 5528, 5815, 6910, 9304, 11056, 11630, 13820, 18608, 23260, 27640, 46520, 55280, 93040, 803633, 1607266, 3214532, 4018165, 6429064, 8036330, 12858128, 16072660, 32145320, 64290640]

約数ペア:

[(1, 64290640), (2, 32145320), (4, 16072660), (5, 12858128), (8, 8036330), (10, 6429064), (16, 4018165), (20, 3214532), (40, 1607266), (80, 803633), (691, 93040), (1163, 55280), (1382, 46520), (2326, 27640), (2764, 23260), (3455, 18608), (4652, 13820), (5528, 11630), (5815, 11056), (6910, 9304)]