1305841280

素因数分解:

$2^7\times 5^1\times {\mathrm{2040377}}^1$

素因数の和:2040396

約数の個数: 32

約数和(自身を含む): 3121778340

約数和(自身を除く): 1815937060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2040377, 4080754, 8161508, 10201885, 16323016, 20403770, 32646032, 40807540, 65292064, 81615080, 130584128, 163230160, 261168256, 326460320, 652920640, 1305841280]

約数ペア:

[(1, 1305841280), (2, 652920640), (4, 326460320), (5, 261168256), (8, 163230160), (10, 130584128), (16, 81615080), (20, 65292064), (32, 40807540), (40, 32646032), (64, 20403770), (80, 16323016), (128, 10201885), (160, 8161508), (320, 4080754), (640, 2040377)]