31310920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9431}}^1$

素因数の和:9525

約数の個数: 32

約数和(自身を含む): 71305920

約数和(自身を除く): 39995000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9431, 18862, 37724, 47155, 75448, 94310, 188620, 377240, 782773, 1565546, 3131092, 3913865, 6262184, 7827730, 15655460, 31310920]

約数ペア:

[(1, 31310920), (2, 15655460), (4, 7827730), (5, 6262184), (8, 3913865), (10, 3131092), (20, 1565546), (40, 782773), (83, 377240), (166, 188620), (332, 94310), (415, 75448), (664, 47155), (830, 37724), (1660, 18862), (3320, 9431)]