131420920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61991}}^1$

素因数の和:62055

約数の個数: 32

約数和(自身を含む): 301281120

約数和(自身を除く): 169860200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 61991, 123982, 247964, 309955, 495928, 619910, 1239820, 2479640, 3285523, 6571046, 13142092, 16427615, 26284184, 32855230, 65710460, 131420920]

約数ペア:

[(1, 131420920), (2, 65710460), (4, 32855230), (5, 26284184), (8, 16427615), (10, 13142092), (20, 6571046), (40, 3285523), (53, 2479640), (106, 1239820), (212, 619910), (265, 495928), (424, 309955), (530, 247964), (1060, 123982), (2120, 61991)]