18536240

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{881}}^1$

素因数の和:1157

約数の個数: 40

約数和(自身を含む): 43309728

約数和(自身を除く): 24773488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 881, 1052, 1315, 1762, 2104, 2630, 3524, 4208, 4405, 5260, 7048, 8810, 10520, 14096, 17620, 21040, 35240, 70480, 231703, 463406, 926812, 1158515, 1853624, 2317030, 3707248, 4634060, 9268120, 18536240]

約数ペア:

[(1, 18536240), (2, 9268120), (4, 4634060), (5, 3707248), (8, 2317030), (10, 1853624), (16, 1158515), (20, 926812), (40, 463406), (80, 231703), (263, 70480), (526, 35240), (881, 21040), (1052, 17620), (1315, 14096), (1762, 10520), (2104, 8810), (2630, 7048), (3524, 5260), (4208, 4405)]