161205928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{3499}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 326340000

約数和(自身を除く): 165134072

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 443, 886, 1772, 3499, 3544, 5759, 6998, 11518, 13996, 23036, 27992, 45487, 46072, 90974, 181948, 363896, 1550057, 3100114, 6200228, 12400456, 20150741, 40301482, 80602964, 161205928]

約数ペア:

[(1, 161205928), (2, 80602964), (4, 40301482), (8, 20150741), (13, 12400456), (26, 6200228), (52, 3100114), (104, 1550057), (443, 363896), (886, 181948), (1772, 90974), (3499, 46072), (3544, 45487), (5759, 27992), (6998, 23036), (11518, 13996)]