8257620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19661}}^1$

素因数の和:19680

約数の個数: 48

約数和(自身を含む): 26425728

約数和(自身を除く): 18168108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19661, 39322, 58983, 78644, 98305, 117966, 137627, 196610, 235932, 275254, 294915, 393220, 412881, 550508, 589830, 688135, 825762, 1179660, 1376270, 1651524, 2064405, 2752540, 4128810, 8257620]

約数ペア:

[(1, 8257620), (2, 4128810), (3, 2752540), (4, 2064405), (5, 1651524), (6, 1376270), (7, 1179660), (10, 825762), (12, 688135), (14, 589830), (15, 550508), (20, 412881), (21, 393220), (28, 294915), (30, 275254), (35, 235932), (42, 196610), (60, 137627), (70, 117966), (84, 98305), (105, 78644), (140, 58983), (210, 39322), (420, 19661)]