18775425

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1801}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 31282720

約数和(自身を除く): 12507295

約数列:

[1, 3, 5, 15, 25, 75, 139, 417, 695, 1801, 2085, 3475, 5403, 9005, 10425, 27015, 45025, 135075, 250339, 751017, 1251695, 3755085, 6258475, 18775425]

約数ペア:

[(1, 18775425), (3, 6258475), (5, 3755085), (15, 1251695), (25, 751017), (75, 250339), (139, 135075), (417, 45025), (695, 27015), (1801, 10425), (2085, 9005), (3475, 5403)]