71720260

素因数分解:

$2^2\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{3299}}^1$

素因数の和:4395

約数の個数: 24

約数和(自身を含む): 150796800

約数和(自身を除く): 79076540

約数列:

[1, 2, 4, 5, 10, 20, 1087, 2174, 3299, 4348, 5435, 6598, 10870, 13196, 16495, 21740, 32990, 65980, 3586013, 7172026, 14344052, 17930065, 35860130, 71720260]

約数ペア:

[(1, 71720260), (2, 35860130), (4, 17930065), (5, 14344052), (10, 7172026), (20, 3586013), (1087, 65980), (2174, 32990), (3299, 21740), (4348, 16495), (5435, 13196), (6598, 10870)]