20148825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{15803}}^1$

素因数の和:15833

約数の個数: 24

約数和(自身を含む): 35274528

約数和(自身を除く): 15125703

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 15803, 47409, 79015, 237045, 268651, 395075, 805953, 1185225, 1343255, 4029765, 6716275, 20148825]

約数ペア:

[(1, 20148825), (3, 6716275), (5, 4029765), (15, 1343255), (17, 1185225), (25, 805953), (51, 395075), (75, 268651), (85, 237045), (255, 79015), (425, 47409), (1275, 15803)]