19715480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3881}}^1$

素因数の和:4019

約数の個数: 32

約数和(自身を含む): 44720640

約数和(自身を除く): 25005160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3881, 5080, 7762, 15524, 19405, 31048, 38810, 77620, 155240, 492887, 985774, 1971548, 2464435, 3943096, 4928870, 9857740, 19715480]

約数ペア:

[(1, 19715480), (2, 9857740), (4, 4928870), (5, 3943096), (8, 2464435), (10, 1971548), (20, 985774), (40, 492887), (127, 155240), (254, 77620), (508, 38810), (635, 31048), (1016, 19405), (1270, 15524), (2540, 7762), (3881, 5080)]