64465540

素因数分解:

$2^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{4483}}^1$

素因数の和:5211

約数の個数: 24

約数和(自身を含む): 135596160

約数和(自身を除く): 71130620

約数列:

[1, 2, 4, 5, 10, 20, 719, 1438, 2876, 3595, 4483, 7190, 8966, 14380, 17932, 22415, 44830, 89660, 3223277, 6446554, 12893108, 16116385, 32232770, 64465540]

約数ペア:

[(1, 64465540), (2, 32232770), (4, 16116385), (5, 12893108), (10, 6446554), (20, 3223277), (719, 89660), (1438, 44830), (2876, 22415), (3595, 17932), (4483, 14380), (7190, 8966)]