13380451640

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{273517}}^1$

素因数の和:274751

約数の個数: 32

約数和(自身を含む): 30130742880

約数和(自身を除く): 16750291240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 4892, 6115, 9784, 12230, 24460, 48920, 273517, 547034, 1094068, 1367585, 2188136, 2735170, 5470340, 10940680, 334511291, 669022582, 1338045164, 1672556455, 2676090328, 3345112910, 6690225820, 13380451640]

約数ペア:

[(1, 13380451640), (2, 6690225820), (4, 3345112910), (5, 2676090328), (8, 1672556455), (10, 1338045164), (20, 669022582), (40, 334511291), (1223, 10940680), (2446, 5470340), (4892, 2735170), (6115, 2188136), (9784, 1367585), (12230, 1094068), (24460, 547034), (48920, 273517)]