12987650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 27570780

約数和(自身を除く): 14583130

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 53, 58, 65, 106, 130, 145, 169, 265, 290, 325, 338, 377, 530, 650, 689, 725, 754, 845, 1325, 1378, 1450, 1537, 1690, 1885, 2650, 3074, 3445, 3770, 4225, 4901, 6890, 7685, 8450, 8957, 9425, 9802, 15370, 17225, 17914, 18850, 19981, 24505, 34450, 38425, 39962, 44785, 49010, 76850, 89570, 99905, 122525, 199810, 223925, 245050, 259753, 447850, 499525, 519506, 999050, 1298765, 2597530, 6493825, 12987650]

約数ペア:

[(1, 12987650), (2, 6493825), (5, 2597530), (10, 1298765), (13, 999050), (25, 519506), (26, 499525), (29, 447850), (50, 259753), (53, 245050), (58, 223925), (65, 199810), (106, 122525), (130, 99905), (145, 89570), (169, 76850), (265, 49010), (290, 44785), (325, 39962), (338, 38425), (377, 34450), (530, 24505), (650, 19981), (689, 18850), (725, 17914), (754, 17225), (845, 15370), (1325, 9802), (1378, 9425), (1450, 8957), (1537, 8450), (1690, 7685), (1885, 6890), (2650, 4901), (3074, 4225), (3445, 3770)]