1298025

素因数分解:

$3^4\times 5^2\times {\mathrm{641}}^1$

素因数の和:663

約数の個数: 30

約数和(自身を含む): 2408142

約数和(自身を除く): 1110117

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 641, 675, 1923, 2025, 3205, 5769, 9615, 16025, 17307, 28845, 48075, 51921, 86535, 144225, 259605, 432675, 1298025]

約数ペア:

[(1, 1298025), (3, 432675), (5, 259605), (9, 144225), (15, 86535), (25, 51921), (27, 48075), (45, 28845), (75, 17307), (81, 16025), (135, 9615), (225, 5769), (405, 3205), (641, 2025), (675, 1923)]