15639075

素因数分解:

$3^4\times 5^2\times {\mathrm{7723}}^1$

素因数の和:7745

約数の個数: 30

約数和(自身を含む): 28972724

約数和(自身を除く): 13333649

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 7723, 23169, 38615, 69507, 115845, 193075, 208521, 347535, 579225, 625563, 1042605, 1737675, 3127815, 5213025, 15639075]

約数ペア:

[(1, 15639075), (3, 5213025), (5, 3127815), (9, 1737675), (15, 1042605), (25, 625563), (27, 579225), (45, 347535), (75, 208521), (81, 193075), (135, 115845), (225, 69507), (405, 38615), (675, 23169), (2025, 7723)]