18955240

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{751}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 42773760

約数和(自身を除く): 23818520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 751, 1262, 1502, 2524, 3004, 3155, 3755, 5048, 6008, 6310, 7510, 12620, 15020, 25240, 30040, 473881, 947762, 1895524, 2369405, 3791048, 4738810, 9477620, 18955240]

約数ペア:

[(1, 18955240), (2, 9477620), (4, 4738810), (5, 3791048), (8, 2369405), (10, 1895524), (20, 947762), (40, 473881), (631, 30040), (751, 25240), (1262, 15020), (1502, 12620), (2524, 7510), (3004, 6310), (3155, 6008), (3755, 5048)]