18812920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67189}}^1$

素因数の和:67207

約数の個数: 32

約数和(自身を含む): 48376800

約数和(自身を除く): 29563880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67189, 134378, 268756, 335945, 470323, 537512, 671890, 940646, 1343780, 1881292, 2351615, 2687560, 3762584, 4703230, 9406460, 18812920]

約数ペア:

[(1, 18812920), (2, 9406460), (4, 4703230), (5, 3762584), (7, 2687560), (8, 2351615), (10, 1881292), (14, 1343780), (20, 940646), (28, 671890), (35, 537512), (40, 470323), (56, 335945), (70, 268756), (140, 134378), (280, 67189)]