81531524

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{70529}}^1$

素因数の和:70567

約数の個数: 18

約数和(自身を含む): 151568970

約数和(自身を除く): 70037446

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 70529, 141058, 282116, 1198993, 2397986, 4795972, 20382881, 40765762, 81531524]

約数ペア:

[(1, 81531524), (2, 40765762), (4, 20382881), (17, 4795972), (34, 2397986), (68, 1198993), (289, 282116), (578, 141058), (1156, 70529)]