20618910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17623}}^1$

素因数の和:17649

約数の個数: 48

約数和(自身を含む): 57736224

約数和(自身を除く): 37117314

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17623, 35246, 52869, 88115, 105738, 158607, 176230, 229099, 264345, 317214, 458198, 528690, 687297, 793035, 1145495, 1374594, 1586070, 2061891, 2290990, 3436485, 4123782, 6872970, 10309455, 20618910]

約数ペア:

[(1, 20618910), (2, 10309455), (3, 6872970), (5, 4123782), (6, 3436485), (9, 2290990), (10, 2061891), (13, 1586070), (15, 1374594), (18, 1145495), (26, 793035), (30, 687297), (39, 528690), (45, 458198), (65, 317214), (78, 264345), (90, 229099), (117, 176230), (130, 158607), (195, 105738), (234, 88115), (390, 52869), (585, 35246), (1170, 17623)]