785911780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{13499}}^1$

素因数の和:13620

約数の個数: 48

約数和(自身を含む): 1714608000

約数和(自身を除く): 928696220

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 710, 820, 1420, 2911, 5822, 11644, 13499, 14555, 26998, 29110, 53996, 58220, 67495, 134990, 269980, 553459, 958429, 1106918, 1916858, 2213836, 2767295, 3833716, 4792145, 5534590, 9584290, 11069180, 19168580, 39295589, 78591178, 157182356, 196477945, 392955890, 785911780]

約数ペア:

[(1, 785911780), (2, 392955890), (4, 196477945), (5, 157182356), (10, 78591178), (20, 39295589), (41, 19168580), (71, 11069180), (82, 9584290), (142, 5534590), (164, 4792145), (205, 3833716), (284, 2767295), (355, 2213836), (410, 1916858), (710, 1106918), (820, 958429), (1420, 553459), (2911, 269980), (5822, 134990), (11644, 67495), (13499, 58220), (14555, 53996), (26998, 29110)]