20706280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73951}}^1$

素因数の和:73969

約数の個数: 32

約数和(自身を含む): 53245440

約数和(自身を除く): 32539160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73951, 147902, 295804, 369755, 517657, 591608, 739510, 1035314, 1479020, 2070628, 2588285, 2958040, 4141256, 5176570, 10353140, 20706280]

約数ペア:

[(1, 20706280), (2, 10353140), (4, 5176570), (5, 4141256), (7, 2958040), (8, 2588285), (10, 2070628), (14, 1479020), (20, 1035314), (28, 739510), (35, 591608), (40, 517657), (56, 369755), (70, 295804), (140, 147902), (280, 73951)]