18211240

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1483}}^1$

素因数の和:1801

約数の個数: 32

約数和(自身を含む): 41136480

約数和(自身を除く): 22925240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1483, 1535, 2456, 2966, 3070, 5932, 6140, 7415, 11864, 12280, 14830, 29660, 59320, 455281, 910562, 1821124, 2276405, 3642248, 4552810, 9105620, 18211240]

約数ペア:

[(1, 18211240), (2, 9105620), (4, 4552810), (5, 3642248), (8, 2276405), (10, 1821124), (20, 910562), (40, 455281), (307, 59320), (614, 29660), (1228, 14830), (1483, 12280), (1535, 11864), (2456, 7415), (2966, 6140), (3070, 5932)]