4151080

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 9413640

約数和(自身を除く): 5262560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 661, 785, 1256, 1322, 1570, 2644, 3140, 3305, 5288, 6280, 6610, 13220, 26440, 103777, 207554, 415108, 518885, 830216, 1037770, 2075540, 4151080]

約数ペア:

[(1, 4151080), (2, 2075540), (4, 1037770), (5, 830216), (8, 518885), (10, 415108), (20, 207554), (40, 103777), (157, 26440), (314, 13220), (628, 6610), (661, 6280), (785, 5288), (1256, 3305), (1322, 3140), (1570, 2644)]