640114320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{3389}}^1$

素因数の和:4192

約数の個数: 80

約数和(自身を含む): 1987462080

約数和(自身を除く): 1347347760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 787, 1574, 2361, 3148, 3389, 3935, 4722, 6296, 6778, 7870, 9444, 10167, 11805, 12592, 13556, 15740, 16945, 18888, 20334, 23610, 27112, 31480, 33890, 37776, 40668, 47220, 50835, 54224, 62960, 67780, 81336, 94440, 101670, 135560, 162672, 188880, 203340, 271120, 406680, 813360, 2667143, 5334286, 8001429, 10668572, 13335715, 16002858, 21337144, 26671430, 32005716, 40007145, 42674288, 53342860, 64011432, 80014290, 106685720, 128022864, 160028580, 213371440, 320057160, 640114320]

約数ペア:

[(1, 640114320), (2, 320057160), (3, 213371440), (4, 160028580), (5, 128022864), (6, 106685720), (8, 80014290), (10, 64011432), (12, 53342860), (15, 42674288), (16, 40007145), (20, 32005716), (24, 26671430), (30, 21337144), (40, 16002858), (48, 13335715), (60, 10668572), (80, 8001429), (120, 5334286), (240, 2667143), (787, 813360), (1574, 406680), (2361, 271120), (3148, 203340), (3389, 188880), (3935, 162672), (4722, 135560), (6296, 101670), (6778, 94440), (7870, 81336), (9444, 67780), (10167, 62960), (11805, 54224), (12592, 50835), (13556, 47220), (15740, 40668), (16945, 37776), (18888, 33890), (20334, 31480), (23610, 27112)]