142237940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2777}}^1$

素因数の和:2996

約数の個数: 48

約数和(自身を含む): 323425872

約数和(自身を除く): 181187932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1970, 2561, 2777, 3940, 5122, 5554, 10244, 11108, 12805, 13885, 25610, 27770, 36101, 51220, 55540, 72202, 144404, 180505, 361010, 547069, 722020, 1094138, 2188276, 2735345, 5470690, 7111897, 10941380, 14223794, 28447588, 35559485, 71118970, 142237940]

約数ペア:

[(1, 142237940), (2, 71118970), (4, 35559485), (5, 28447588), (10, 14223794), (13, 10941380), (20, 7111897), (26, 5470690), (52, 2735345), (65, 2188276), (130, 1094138), (197, 722020), (260, 547069), (394, 361010), (788, 180505), (985, 144404), (1970, 72202), (2561, 55540), (2777, 51220), (3940, 36101), (5122, 27770), (5554, 25610), (10244, 13885), (11108, 12805)]