28782225

素因数分解:

$3^2\times 5^2\times {\mathrm{127921}}^1$

素因数の和:127937

約数の個数: 18

約数和(自身を含む): 51552566

約数和(自身を除く): 22770341

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 127921, 383763, 639605, 1151289, 1918815, 3198025, 5756445, 9594075, 28782225]

約数ペア:

[(1, 28782225), (3, 9594075), (5, 5756445), (9, 3198025), (15, 1918815), (25, 1151289), (45, 639605), (75, 383763), (225, 127921)]