201390705

素因数分解:

$3^4\times 5^1\times {\mathrm{497261}}^1$

素因数の和:497278

約数の個数: 20

約数和(自身を含む): 361012212

約数和(自身を除く): 159621507

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 497261, 1491783, 2486305, 4475349, 7458915, 13426047, 22376745, 40278141, 67130235, 201390705]

約数ペア:

[(1, 201390705), (3, 67130235), (5, 40278141), (9, 22376745), (15, 13426047), (27, 7458915), (45, 4475349), (81, 2486305), (135, 1491783), (405, 497261)]