551360440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{194141}}^1$

素因数の和:194223

約数の個数: 32

約数和(自身を含む): 1258040160

約数和(自身を除く): 706679720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 194141, 388282, 776564, 970705, 1553128, 1941410, 3882820, 7765640, 13784011, 27568022, 55136044, 68920055, 110272088, 137840110, 275680220, 551360440]

約数ペア:

[(1, 551360440), (2, 275680220), (4, 137840110), (5, 110272088), (8, 68920055), (10, 55136044), (20, 27568022), (40, 13784011), (71, 7765640), (142, 3882820), (284, 1941410), (355, 1553128), (568, 970705), (710, 776564), (1420, 388282), (2840, 194141)]