68376920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{19207}}^1$

素因数の和:19307

約数の個数: 32

約数和(自身を含む): 155584800

約数和(自身を除く): 87207880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 19207, 38414, 76828, 96035, 153656, 192070, 384140, 768280, 1709423, 3418846, 6837692, 8547115, 13675384, 17094230, 34188460, 68376920]

約数ペア:

[(1, 68376920), (2, 34188460), (4, 17094230), (5, 13675384), (8, 8547115), (10, 6837692), (20, 3418846), (40, 1709423), (89, 768280), (178, 384140), (356, 192070), (445, 153656), (712, 96035), (890, 76828), (1780, 38414), (3560, 19207)]