21272880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{587}}^1$

素因数の和:754

約数の個数: 80

約数和(自身を含む): 66495744

約数和(自身を除く): 45222864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 151, 240, 302, 453, 587, 604, 755, 906, 1174, 1208, 1510, 1761, 1812, 2265, 2348, 2416, 2935, 3020, 3522, 3624, 4530, 4696, 5870, 6040, 7044, 7248, 8805, 9060, 9392, 11740, 12080, 14088, 17610, 18120, 23480, 28176, 35220, 36240, 46960, 70440, 88637, 140880, 177274, 265911, 354548, 443185, 531822, 709096, 886370, 1063644, 1329555, 1418192, 1772740, 2127288, 2659110, 3545480, 4254576, 5318220, 7090960, 10636440, 21272880]

約数ペア:

[(1, 21272880), (2, 10636440), (3, 7090960), (4, 5318220), (5, 4254576), (6, 3545480), (8, 2659110), (10, 2127288), (12, 1772740), (15, 1418192), (16, 1329555), (20, 1063644), (24, 886370), (30, 709096), (40, 531822), (48, 443185), (60, 354548), (80, 265911), (120, 177274), (151, 140880), (240, 88637), (302, 70440), (453, 46960), (587, 36240), (604, 35220), (755, 28176), (906, 23480), (1174, 18120), (1208, 17610), (1510, 14088), (1761, 12080), (1812, 11740), (2265, 9392), (2348, 9060), (2416, 8805), (2935, 7248), (3020, 7044), (3522, 6040), (3624, 5870), (4530, 4696)]