65720020

素因数分解:

$2^2\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{3023}}^1$

素因数の和:4119

約数の個数: 24

約数和(自身を含む): 138184704

約数和(自身を除く): 72464684

約数列:

[1, 2, 4, 5, 10, 20, 1087, 2174, 3023, 4348, 5435, 6046, 10870, 12092, 15115, 21740, 30230, 60460, 3286001, 6572002, 13144004, 16430005, 32860010, 65720020]

約数ペア:

[(1, 65720020), (2, 32860010), (4, 16430005), (5, 13144004), (10, 6572002), (20, 3286001), (1087, 60460), (2174, 30230), (3023, 21740), (4348, 15115), (5435, 12092), (6046, 10870)]