208125

素因数分解:

$3^2\times 5^4\times {\mathrm{37}}^1$

素因数の和:63

約数の個数: 30

約数和(自身を含む): 385814

約数和(自身を除く): 177689

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 125, 185, 225, 333, 375, 555, 625, 925, 1125, 1665, 1875, 2775, 4625, 5625, 8325, 13875, 23125, 41625, 69375, 208125]

約数ペア:

[(1, 208125), (3, 69375), (5, 41625), (9, 23125), (15, 13875), (25, 8325), (37, 5625), (45, 4625), (75, 2775), (111, 1875), (125, 1665), (185, 1125), (225, 925), (333, 625), (375, 555)]