21883960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78157}}^1$

素因数の和:78175

約数の個数: 32

約数和(自身を含む): 56273760

約数和(自身を除く): 34389800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78157, 156314, 312628, 390785, 547099, 625256, 781570, 1094198, 1563140, 2188396, 2735495, 3126280, 4376792, 5470990, 10941980, 21883960]

約数ペア:

[(1, 21883960), (2, 10941980), (4, 5470990), (5, 4376792), (7, 3126280), (8, 2735495), (10, 2188396), (14, 1563140), (20, 1094198), (28, 781570), (35, 625256), (40, 547099), (56, 390785), (70, 312628), (140, 156314), (280, 78157)]