65605220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23599}}^1$

素因数の和:23747

約数の個数: 24

約数和(自身を含む): 138768000

約数和(自身を除く): 73162780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 23599, 47198, 94396, 117995, 235990, 471980, 3280261, 6560522, 13121044, 16401305, 32802610, 65605220]

約数ペア:

[(1, 65605220), (2, 32802610), (4, 16401305), (5, 13121044), (10, 6560522), (20, 3280261), (139, 471980), (278, 235990), (556, 117995), (695, 94396), (1390, 47198), (2780, 23599)]