889785280

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67819}}^1$

素因数の和:67877

約数の個数: 56

約数和(自身を含む): 2170511280

約数和(自身を除く): 1280726000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1640, 2624, 3280, 6560, 13120, 67819, 135638, 271276, 339095, 542552, 678190, 1085104, 1356380, 2170208, 2712760, 2780579, 4340416, 5425520, 5561158, 10851040, 11122316, 13902895, 21702080, 22244632, 27805790, 44489264, 55611580, 88978528, 111223160, 177957056, 222446320, 444892640, 889785280]

約数ペア:

[(1, 889785280), (2, 444892640), (4, 222446320), (5, 177957056), (8, 111223160), (10, 88978528), (16, 55611580), (20, 44489264), (32, 27805790), (40, 22244632), (41, 21702080), (64, 13902895), (80, 11122316), (82, 10851040), (160, 5561158), (164, 5425520), (205, 4340416), (320, 2780579), (328, 2712760), (410, 2170208), (656, 1356380), (820, 1085104), (1312, 678190), (1640, 542552), (2624, 339095), (3280, 271276), (6560, 135638), (13120, 67819)]