68718890

素因数分解:

$2^1\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{4021}}^1$

素因数の和:5737

約数の個数: 16

約数和(自身を含む): 123797160

約数和(自身を除く): 55078270

約数列:

[1, 2, 5, 10, 1709, 3418, 4021, 8042, 8545, 17090, 20105, 40210, 6871889, 13743778, 34359445, 68718890]

約数ペア:

[(1, 68718890), (2, 34359445), (5, 13743778), (10, 6871889), (1709, 40210), (3418, 20105), (4021, 17090), (8042, 8545)]