1203255

素因数分解:

$3^4\times 5^1\times {\mathrm{2971}}^1$

素因数の和:2988

約数の個数: 20

約数和(自身を含む): 2157672

約数和(自身を除く): 954417

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2971, 8913, 14855, 26739, 44565, 80217, 133695, 240651, 401085, 1203255]

約数ペア:

[(1, 1203255), (3, 401085), (5, 240651), (9, 133695), (15, 80217), (27, 44565), (45, 26739), (81, 14855), (135, 8913), (405, 2971)]