81767560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292027}}^1$

素因数の和:292045

約数の個数: 32

約数和(自身を含む): 210260160

約数和(自身を除く): 128492600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292027, 584054, 1168108, 1460135, 2044189, 2336216, 2920270, 4088378, 5840540, 8176756, 10220945, 11681080, 16353512, 20441890, 40883780, 81767560]

約数ペア:

[(1, 81767560), (2, 40883780), (4, 20441890), (5, 16353512), (7, 11681080), (8, 10220945), (10, 8176756), (14, 5840540), (20, 4088378), (28, 2920270), (35, 2336216), (40, 2044189), (56, 1460135), (70, 1168108), (140, 584054), (280, 292027)]