1028128545

素因数分解:

$3^4\times 5^1\times {\mathrm{2538589}}^1$

素因数の和:2538606

約数の個数: 20

約数和(自身を含む): 1843016340

約数和(自身を除く): 814887795

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2538589, 7615767, 12692945, 22847301, 38078835, 68541903, 114236505, 205625709, 342709515, 1028128545]

約数ペア:

[(1, 1028128545), (3, 342709515), (5, 205625709), (9, 114236505), (15, 68541903), (27, 38078835), (45, 22847301), (81, 12692945), (135, 7615767), (405, 2538589)]