81380210

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{5281}}^1$

素因数の和:5378

約数の個数: 32

約数和(自身を含む): 155164032

約数和(自身を除く): 73783822

約数列:

[1, 2, 5, 10, 23, 46, 67, 115, 134, 230, 335, 670, 1541, 3082, 5281, 7705, 10562, 15410, 26405, 52810, 121463, 242926, 353827, 607315, 707654, 1214630, 1769135, 3538270, 8138021, 16276042, 40690105, 81380210]

約数ペア:

[(1, 81380210), (2, 40690105), (5, 16276042), (10, 8138021), (23, 3538270), (46, 1769135), (67, 1214630), (115, 707654), (134, 607315), (230, 353827), (335, 242926), (670, 121463), (1541, 52810), (3082, 26405), (5281, 15410), (7705, 10562)]