28445985

素因数分解:

$3^4\times 5^1\times {\mathrm{70237}}^1$

素因数の和:70254

約数の個数: 20

約数和(自身を含む): 50992788

約数和(自身を除く): 22546803

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70237, 210711, 351185, 632133, 1053555, 1896399, 3160665, 5689197, 9481995, 28445985]

約数ペア:

[(1, 28445985), (3, 9481995), (5, 5689197), (9, 3160665), (15, 1896399), (27, 1053555), (45, 632133), (81, 351185), (135, 210711), (405, 70237)]