3553240

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 8051760

約数和(自身を除く): 4498520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 421, 422, 842, 844, 1055, 1684, 1688, 2105, 2110, 3368, 4210, 4220, 8420, 8440, 16840, 88831, 177662, 355324, 444155, 710648, 888310, 1776620, 3553240]

約数ペア:

[(1, 3553240), (2, 1776620), (4, 888310), (5, 710648), (8, 444155), (10, 355324), (20, 177662), (40, 88831), (211, 16840), (421, 8440), (422, 8420), (842, 4220), (844, 4210), (1055, 3368), (1684, 2110), (1688, 2105)]