64511960

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{2657}}^1$

素因数の和:3275

約数の個数: 32

約数和(自身を含む): 145445760

約数和(自身を除く): 80933800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1214, 2428, 2657, 3035, 4856, 5314, 6070, 10628, 12140, 13285, 21256, 24280, 26570, 53140, 106280, 1612799, 3225598, 6451196, 8063995, 12902392, 16127990, 32255980, 64511960]

約数ペア:

[(1, 64511960), (2, 32255980), (4, 16127990), (5, 12902392), (8, 8063995), (10, 6451196), (20, 3225598), (40, 1612799), (607, 106280), (1214, 53140), (2428, 26570), (2657, 24280), (3035, 21256), (4856, 13285), (5314, 12140), (6070, 10628)]