128687535

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18691}}^1$

素因数の和:18725

約数の個数: 40

約数和(自身を含む): 244267056

約数和(自身を除く): 115579521

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 18691, 56073, 93455, 168219, 280365, 317747, 504657, 841095, 953241, 1513971, 1588735, 2523285, 2859723, 4766205, 7569855, 8579169, 14298615, 25737507, 42895845, 128687535]

約数ペア:

[(1, 128687535), (3, 42895845), (5, 25737507), (9, 14298615), (15, 8579169), (17, 7569855), (27, 4766205), (45, 2859723), (51, 2523285), (81, 1588735), (85, 1513971), (135, 953241), (153, 841095), (255, 504657), (405, 317747), (459, 280365), (765, 168219), (1377, 93455), (2295, 56073), (6885, 18691)]