18638490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47791}}^1$

素因数の和:47814

約数の個数: 32

約数和(自身を含む): 48174336

約数和(自身を除く): 29535846

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 47791, 95582, 143373, 238955, 286746, 477910, 621283, 716865, 1242566, 1433730, 1863849, 3106415, 3727698, 6212830, 9319245, 18638490]

約数ペア:

[(1, 18638490), (2, 9319245), (3, 6212830), (5, 3727698), (6, 3106415), (10, 1863849), (13, 1433730), (15, 1242566), (26, 716865), (30, 621283), (39, 477910), (65, 286746), (78, 238955), (130, 143373), (195, 95582), (390, 47791)]