2557575

素因数分解:

$3^5\times 5^2\times {\mathrm{421}}^1$

素因数の和:446

約数の個数: 36

約数和(自身を含む): 4761848

約数和(自身を除く): 2204273

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 421, 675, 1215, 1263, 2025, 2105, 3789, 6075, 6315, 10525, 11367, 18945, 31575, 34101, 56835, 94725, 102303, 170505, 284175, 511515, 852525, 2557575]

約数ペア:

[(1, 2557575), (3, 852525), (5, 511515), (9, 284175), (15, 170505), (25, 102303), (27, 94725), (45, 56835), (75, 34101), (81, 31575), (135, 18945), (225, 11367), (243, 10525), (405, 6315), (421, 6075), (675, 3789), (1215, 2105), (1263, 2025)]