2188125

素因数分解:

$3^2\times 5^4\times {\mathrm{389}}^1$

素因数の和:415

約数の個数: 30

約数和(自身を含む): 3959670

約数和(自身を除く): 1771545

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 389, 625, 1125, 1167, 1875, 1945, 3501, 5625, 5835, 9725, 17505, 29175, 48625, 87525, 145875, 243125, 437625, 729375, 2188125]

約数ペア:

[(1, 2188125), (3, 729375), (5, 437625), (9, 243125), (15, 145875), (25, 87525), (45, 48625), (75, 29175), (125, 17505), (225, 9725), (375, 5835), (389, 5625), (625, 3501), (1125, 1945), (1167, 1875)]