131294410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{77689}}^1$

素因数の和:77722

約数の個数: 24

約数和(自身を含む): 255910860

約数和(自身を除く): 124616450

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 77689, 155378, 388445, 776890, 1009957, 2019914, 5049785, 10099570, 13129441, 26258882, 65647205, 131294410]

約数ペア:

[(1, 131294410), (2, 65647205), (5, 26258882), (10, 13129441), (13, 10099570), (26, 5049785), (65, 2019914), (130, 1009957), (169, 776890), (338, 388445), (845, 155378), (1690, 77689)]