209219620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6367}}^1$

素因数の和:6460

約数の個数: 48

約数和(自身を含む): 462163968

約数和(自身を除く): 252944348

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 1060, 1643, 3286, 6367, 6572, 8215, 12734, 16430, 25468, 31835, 32860, 63670, 127340, 197377, 337451, 394754, 674902, 789508, 986885, 1349804, 1687255, 1973770, 3374510, 3947540, 6749020, 10460981, 20921962, 41843924, 52304905, 104609810, 209219620]

約数ペア:

[(1, 209219620), (2, 104609810), (4, 52304905), (5, 41843924), (10, 20921962), (20, 10460981), (31, 6749020), (53, 3947540), (62, 3374510), (106, 1973770), (124, 1687255), (155, 1349804), (212, 986885), (265, 789508), (310, 674902), (530, 394754), (620, 337451), (1060, 197377), (1643, 127340), (3286, 63670), (6367, 32860), (6572, 31835), (8215, 25468), (12734, 16430)]