31838140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{947}}^1$

素因数の和:1038

約数の個数: 36

約数和(自身を含む): 68602968

約数和(自身を除く): 36764828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 947, 1681, 1894, 3362, 3788, 4735, 6724, 8405, 9470, 16810, 18940, 33620, 38827, 77654, 155308, 194135, 388270, 776540, 1591907, 3183814, 6367628, 7959535, 15919070, 31838140]

約数ペア:

[(1, 31838140), (2, 15919070), (4, 7959535), (5, 6367628), (10, 3183814), (20, 1591907), (41, 776540), (82, 388270), (164, 194135), (205, 155308), (410, 77654), (820, 38827), (947, 33620), (1681, 18940), (1894, 16810), (3362, 9470), (3788, 8405), (4735, 6724)]