31153840

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2251}}^1$

素因数の和:2437

約数の個数: 40

約数和(自身を含む): 72883728

約数和(自身を除く): 41729888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2251, 2768, 3460, 4502, 6920, 9004, 11255, 13840, 18008, 22510, 36016, 45020, 90040, 180080, 389423, 778846, 1557692, 1947115, 3115384, 3894230, 6230768, 7788460, 15576920, 31153840]

約数ペア:

[(1, 31153840), (2, 15576920), (4, 7788460), (5, 6230768), (8, 3894230), (10, 3115384), (16, 1947115), (20, 1557692), (40, 778846), (80, 389423), (173, 180080), (346, 90040), (692, 45020), (865, 36016), (1384, 22510), (1730, 18008), (2251, 13840), (2768, 11255), (3460, 9004), (4502, 6920)]