64611280

素因数分解:

$2^4\times 5^1\times {\mathrm{743}}^1\times {\mathrm{1087}}^1$

素因数の和:1843

約数の個数: 40

約数和(自身を含む): 150561792

約数和(自身を除く): 85950512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 743, 1087, 1486, 2174, 2972, 3715, 4348, 5435, 5944, 7430, 8696, 10870, 11888, 14860, 17392, 21740, 29720, 43480, 59440, 86960, 807641, 1615282, 3230564, 4038205, 6461128, 8076410, 12922256, 16152820, 32305640, 64611280]

約数ペア:

[(1, 64611280), (2, 32305640), (4, 16152820), (5, 12922256), (8, 8076410), (10, 6461128), (16, 4038205), (20, 3230564), (40, 1615282), (80, 807641), (743, 86960), (1087, 59440), (1486, 43480), (2174, 29720), (2972, 21740), (3715, 17392), (4348, 14860), (5435, 11888), (5944, 10870), (7430, 8696)]