67702420

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{5281}}^1$

素因数の和:5931

約数の個数: 24

約数和(自身を含む): 142423848

約数和(自身を除く): 74721428

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 5281, 6410, 10562, 12820, 21124, 26405, 52810, 105620, 3385121, 6770242, 13540484, 16925605, 33851210, 67702420]

約数ペア:

[(1, 67702420), (2, 33851210), (4, 16925605), (5, 13540484), (10, 6770242), (20, 3385121), (641, 105620), (1282, 52810), (2564, 26405), (3205, 21124), (5281, 12820), (6410, 10562)]