1639960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5857}}^1$

素因数の和:5875

約数の個数: 32

約数和(自身を含む): 4217760

約数和(自身を除く): 2577800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5857, 11714, 23428, 29285, 40999, 46856, 58570, 81998, 117140, 163996, 204995, 234280, 327992, 409990, 819980, 1639960]

約数ペア:

[(1, 1639960), (2, 819980), (4, 409990), (5, 327992), (7, 234280), (8, 204995), (10, 163996), (14, 117140), (20, 81998), (28, 58570), (35, 46856), (40, 40999), (56, 29285), (70, 23428), (140, 11714), (280, 5857)]