27801980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{23561}}^1$

素因数の和:23629

約数の個数: 24

約数和(自身を含む): 59376240

約数和(自身を除く): 31574260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 23561, 47122, 94244, 117805, 235610, 471220, 1390099, 2780198, 5560396, 6950495, 13900990, 27801980]

約数ペア:

[(1, 27801980), (2, 13900990), (4, 6950495), (5, 5560396), (10, 2780198), (20, 1390099), (59, 471220), (118, 235610), (236, 117805), (295, 94244), (590, 47122), (1180, 23561)]