56872360

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2729}}^1$

素因数の和:3261

約数の個数: 32

約数和(自身を含む): 128255400

約数和(自身を除く): 71383040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 2729, 4168, 5210, 5458, 10420, 10916, 13645, 20840, 21832, 27290, 54580, 109160, 1421809, 2843618, 5687236, 7109045, 11374472, 14218090, 28436180, 56872360]

約数ペア:

[(1, 56872360), (2, 28436180), (4, 14218090), (5, 11374472), (8, 7109045), (10, 5687236), (20, 2843618), (40, 1421809), (521, 109160), (1042, 54580), (2084, 27290), (2605, 21832), (2729, 20840), (4168, 13645), (5210, 10916), (5458, 10420)]