810757160

素因数分解:

$2^3\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{19891}}^1$

素因数の和:20921

約数の個数: 32

約数和(自身を含む): 1826085600

約数和(自身を除く): 1015328440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019, 2038, 4076, 5095, 8152, 10190, 19891, 20380, 39782, 40760, 79564, 99455, 159128, 198910, 397820, 795640, 20268929, 40537858, 81075716, 101344645, 162151432, 202689290, 405378580, 810757160]

約数ペア:

[(1, 810757160), (2, 405378580), (4, 202689290), (5, 162151432), (8, 101344645), (10, 81075716), (20, 40537858), (40, 20268929), (1019, 795640), (2038, 397820), (4076, 198910), (5095, 159128), (8152, 99455), (10190, 79564), (19891, 40760), (20380, 39782)]