19535620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{331}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 44509248

約数和(自身を除く): 24973628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 331, 454, 662, 908, 1135, 1324, 1655, 2270, 2951, 3310, 4303, 4540, 5902, 6620, 8606, 11804, 14755, 17212, 21515, 29510, 43030, 59020, 75137, 86060, 150274, 300548, 375685, 751370, 976781, 1502740, 1953562, 3907124, 4883905, 9767810, 19535620]

約数ペア:

[(1, 19535620), (2, 9767810), (4, 4883905), (5, 3907124), (10, 1953562), (13, 1502740), (20, 976781), (26, 751370), (52, 375685), (65, 300548), (130, 150274), (227, 86060), (260, 75137), (331, 59020), (454, 43030), (662, 29510), (908, 21515), (1135, 17212), (1324, 14755), (1655, 11804), (2270, 8606), (2951, 6620), (3310, 5902), (4303, 4540)]