61994420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99991}}^1$

素因数の和:100031

約数の個数: 24

約数和(自身を含む): 134389248

約数和(自身を除く): 72394828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 99991, 199982, 399964, 499955, 999910, 1999820, 3099721, 6199442, 12398884, 15498605, 30997210, 61994420]

約数ペア:

[(1, 61994420), (2, 30997210), (4, 15498605), (5, 12398884), (10, 6199442), (20, 3099721), (31, 1999820), (62, 999910), (124, 499955), (155, 399964), (310, 199982), (620, 99991)]