21164576880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{67679}}^1$

素因数の和:68998

約数の個数: 80

約数和(自身を含む): 65661511680

約数和(自身を除く): 44496934800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1303, 2606, 3909, 5212, 6515, 7818, 10424, 13030, 15636, 19545, 20848, 26060, 31272, 39090, 52120, 62544, 67679, 78180, 104240, 135358, 156360, 203037, 270716, 312720, 338395, 406074, 541432, 676790, 812148, 1015185, 1082864, 1353580, 1624296, 2030370, 2707160, 3248592, 4060740, 5414320, 8121480, 16242960, 88185737, 176371474, 264557211, 352742948, 440928685, 529114422, 705485896, 881857370, 1058228844, 1322786055, 1410971792, 1763714740, 2116457688, 2645572110, 3527429480, 4232915376, 5291144220, 7054858960, 10582288440, 21164576880]

約数ペア:

[(1, 21164576880), (2, 10582288440), (3, 7054858960), (4, 5291144220), (5, 4232915376), (6, 3527429480), (8, 2645572110), (10, 2116457688), (12, 1763714740), (15, 1410971792), (16, 1322786055), (20, 1058228844), (24, 881857370), (30, 705485896), (40, 529114422), (48, 440928685), (60, 352742948), (80, 264557211), (120, 176371474), (240, 88185737), (1303, 16242960), (2606, 8121480), (3909, 5414320), (5212, 4060740), (6515, 3248592), (7818, 2707160), (10424, 2030370), (13030, 1624296), (15636, 1353580), (19545, 1082864), (20848, 1015185), (26060, 812148), (31272, 676790), (39090, 541432), (52120, 406074), (62544, 338395), (67679, 312720), (78180, 270716), (104240, 203037), (135358, 156360)]