3157840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{5639}}^1$

素因数の和:5659

約数の個数: 40

約数和(自身を含む): 8392320

約数和(自身を除く): 5234480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 5639, 11278, 22556, 28195, 39473, 45112, 56390, 78946, 90224, 112780, 157892, 197365, 225560, 315784, 394730, 451120, 631568, 789460, 1578920, 3157840]

約数ペア:

[(1, 3157840), (2, 1578920), (4, 789460), (5, 631568), (7, 451120), (8, 394730), (10, 315784), (14, 225560), (16, 197365), (20, 157892), (28, 112780), (35, 90224), (40, 78946), (56, 56390), (70, 45112), (80, 39473), (112, 28195), (140, 22556), (280, 11278), (560, 5639)]