20486490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15881}}^1$

素因数の和:15934

約数の個数: 32

約数和(自身を含む): 50314176

約数和(自身を除く): 29827686

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 15881, 31762, 47643, 79405, 95286, 158810, 238215, 476430, 682883, 1365766, 2048649, 3414415, 4097298, 6828830, 10243245, 20486490]

約数ペア:

[(1, 20486490), (2, 10243245), (3, 6828830), (5, 4097298), (6, 3414415), (10, 2048649), (15, 1365766), (30, 682883), (43, 476430), (86, 238215), (129, 158810), (215, 95286), (258, 79405), (430, 47643), (645, 31762), (1290, 15881)]