18000075

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2243}}^1$

素因数の和:2363

約数の個数: 24

約数和(自身を含む): 30051648

約数和(自身を除く): 12051573

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2243, 2675, 6729, 8025, 11215, 33645, 56075, 168225, 240001, 720003, 1200005, 3600015, 6000025, 18000075]

約数ペア:

[(1, 18000075), (3, 6000025), (5, 3600015), (15, 1200005), (25, 720003), (75, 240001), (107, 168225), (321, 56075), (535, 33645), (1605, 11215), (2243, 8025), (2675, 6729)]