268128560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{478801}}^1$

素因数の和:478821

約数の個数: 40

約数和(自身を含む): 712457376

約数和(自身を除く): 444328816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 478801, 957602, 1915204, 2394005, 3351607, 3830408, 4788010, 6703214, 7660816, 9576020, 13406428, 16758035, 19152040, 26812856, 33516070, 38304080, 53625712, 67032140, 134064280, 268128560]

約数ペア:

[(1, 268128560), (2, 134064280), (4, 67032140), (5, 53625712), (7, 38304080), (8, 33516070), (10, 26812856), (14, 19152040), (16, 16758035), (20, 13406428), (28, 9576020), (35, 7660816), (40, 6703214), (56, 4788010), (70, 3830408), (80, 3351607), (112, 2394005), (140, 1915204), (280, 957602), (560, 478801)]