21752880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 67897440

約数和(自身を除く): 46144560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 233, 240, 389, 466, 699, 778, 932, 1165, 1167, 1398, 1556, 1864, 1945, 2330, 2334, 2796, 3112, 3495, 3728, 3890, 4660, 4668, 5592, 5835, 6224, 6990, 7780, 9320, 9336, 11184, 11670, 13980, 15560, 18640, 18672, 23340, 27960, 31120, 46680, 55920, 90637, 93360, 181274, 271911, 362548, 453185, 543822, 725096, 906370, 1087644, 1359555, 1450192, 1812740, 2175288, 2719110, 3625480, 4350576, 5438220, 7250960, 10876440, 21752880]

約数ペア:

[(1, 21752880), (2, 10876440), (3, 7250960), (4, 5438220), (5, 4350576), (6, 3625480), (8, 2719110), (10, 2175288), (12, 1812740), (15, 1450192), (16, 1359555), (20, 1087644), (24, 906370), (30, 725096), (40, 543822), (48, 453185), (60, 362548), (80, 271911), (120, 181274), (233, 93360), (240, 90637), (389, 55920), (466, 46680), (699, 31120), (778, 27960), (932, 23340), (1165, 18672), (1167, 18640), (1398, 15560), (1556, 13980), (1864, 11670), (1945, 11184), (2330, 9336), (2334, 9320), (2796, 7780), (3112, 6990), (3495, 6224), (3728, 5835), (3890, 5592), (4660, 4668)]