65356360

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2549}}^1$

素因数の和:3201

約数の個数: 32

約数和(自身を含む): 147339000

約数和(自身を除く): 81982640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2549, 2564, 3205, 5098, 5128, 6410, 10196, 12745, 12820, 20392, 25490, 25640, 50980, 101960, 1633909, 3267818, 6535636, 8169545, 13071272, 16339090, 32678180, 65356360]

約数ペア:

[(1, 65356360), (2, 32678180), (4, 16339090), (5, 13071272), (8, 8169545), (10, 6535636), (20, 3267818), (40, 1633909), (641, 101960), (1282, 50980), (2549, 25640), (2564, 25490), (3205, 20392), (5098, 12820), (5128, 12745), (6410, 10196)]