21107280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2837}}^1$

素因数の和:2884

約数の個数: 80

約数和(自身を含む): 67567104

約数和(自身を除く): 46459824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2837, 3720, 5674, 7440, 8511, 11348, 14185, 17022, 22696, 28370, 34044, 42555, 45392, 56740, 68088, 85110, 87947, 113480, 136176, 170220, 175894, 226960, 263841, 340440, 351788, 439735, 527682, 680880, 703576, 879470, 1055364, 1319205, 1407152, 1758940, 2110728, 2638410, 3517880, 4221456, 5276820, 7035760, 10553640, 21107280]

約数ペア:

[(1, 21107280), (2, 10553640), (3, 7035760), (4, 5276820), (5, 4221456), (6, 3517880), (8, 2638410), (10, 2110728), (12, 1758940), (15, 1407152), (16, 1319205), (20, 1055364), (24, 879470), (30, 703576), (31, 680880), (40, 527682), (48, 439735), (60, 351788), (62, 340440), (80, 263841), (93, 226960), (120, 175894), (124, 170220), (155, 136176), (186, 113480), (240, 87947), (248, 85110), (310, 68088), (372, 56740), (465, 45392), (496, 42555), (620, 34044), (744, 28370), (930, 22696), (1240, 17022), (1488, 14185), (1860, 11348), (2480, 8511), (2837, 7440), (3720, 5674)]