82571240

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{3947}}^1$

素因数の和:4481

約数の個数: 32

約数和(自身を含む): 186187680

約数和(自身を除く): 103616440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 3947, 4184, 5230, 7894, 10460, 15788, 19735, 20920, 31576, 39470, 78940, 157880, 2064281, 4128562, 8257124, 10321405, 16514248, 20642810, 41285620, 82571240]

約数ペア:

[(1, 82571240), (2, 41285620), (4, 20642810), (5, 16514248), (8, 10321405), (10, 8257124), (20, 4128562), (40, 2064281), (523, 157880), (1046, 78940), (2092, 39470), (2615, 31576), (3947, 20920), (4184, 19735), (5230, 15788), (7894, 10460)]