392800280

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{22679}}^1$

素因数の和:23123

約数の個数: 32

約数和(自身を含む): 885880800

約数和(自身を除く): 493080520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1732, 2165, 3464, 4330, 8660, 17320, 22679, 45358, 90716, 113395, 181432, 226790, 453580, 907160, 9820007, 19640014, 39280028, 49100035, 78560056, 98200070, 196400140, 392800280]

約数ペア:

[(1, 392800280), (2, 196400140), (4, 98200070), (5, 78560056), (8, 49100035), (10, 39280028), (20, 19640014), (40, 9820007), (433, 907160), (866, 453580), (1732, 226790), (2165, 181432), (3464, 113395), (4330, 90716), (8660, 45358), (17320, 22679)]