211511950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{25031}}^1$

素因数の和:25069

約数の個数: 36

約数和(自身を含む): 426019608

約数和(自身を除く): 214507658

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 4225, 8450, 25031, 50062, 125155, 250310, 325403, 625775, 650806, 1251550, 1627015, 3254030, 4230239, 8135075, 8460478, 16270150, 21151195, 42302390, 105755975, 211511950]

約数ペア:

[(1, 211511950), (2, 105755975), (5, 42302390), (10, 21151195), (13, 16270150), (25, 8460478), (26, 8135075), (50, 4230239), (65, 3254030), (130, 1627015), (169, 1251550), (325, 650806), (338, 625775), (650, 325403), (845, 250310), (1690, 125155), (4225, 50062), (8450, 25031)]