64971980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{55061}}^1$

素因数の和:55129

約数の個数: 24

約数和(自身を含む): 138756240

約数和(自身を除く): 73784260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 55061, 110122, 220244, 275305, 550610, 1101220, 3248599, 6497198, 12994396, 16242995, 32485990, 64971980]

約数ペア:

[(1, 64971980), (2, 32485990), (4, 16242995), (5, 12994396), (10, 6497198), (20, 3248599), (59, 1101220), (118, 550610), (236, 275305), (295, 220244), (590, 110122), (1180, 55061)]