66380540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42013}}^1$

素因数の和:42101

約数の個数: 24

約数和(自身を含む): 141167040

約数和(自身を除く): 74786500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 42013, 84026, 168052, 210065, 420130, 840260, 3319027, 6638054, 13276108, 16595135, 33190270, 66380540]

約数ペア:

[(1, 66380540), (2, 33190270), (4, 16595135), (5, 13276108), (10, 6638054), (20, 3319027), (79, 840260), (158, 420130), (316, 210065), (395, 168052), (790, 84026), (1580, 42013)]