68680420

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{20563}}^1$

素因数の和:20739

約数の個数: 24

約数和(自身を含む): 145099584

約数和(自身を除く): 76419164

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 20563, 41126, 82252, 102815, 205630, 411260, 3434021, 6868042, 13736084, 17170105, 34340210, 68680420]

約数ペア:

[(1, 68680420), (2, 34340210), (4, 17170105), (5, 13736084), (10, 6868042), (20, 3434021), (167, 411260), (334, 205630), (668, 102815), (835, 82252), (1670, 41126), (3340, 20563)]