20104890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51551}}^1$

素因数の和:51574

約数の個数: 32

約数和(自身を含む): 51964416

約数和(自身を除く): 31859526

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51551, 103102, 154653, 257755, 309306, 515510, 670163, 773265, 1340326, 1546530, 2010489, 3350815, 4020978, 6701630, 10052445, 20104890]

約数ペア:

[(1, 20104890), (2, 10052445), (3, 6701630), (5, 4020978), (6, 3350815), (10, 2010489), (13, 1546530), (15, 1340326), (26, 773265), (30, 670163), (39, 515510), (65, 309306), (78, 257755), (130, 154653), (195, 103102), (390, 51551)]