28183920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2731}}^1$

素因数の和:2790

約数の個数: 80

約数和(自身を含む): 89434752

約数和(自身を除く): 61250832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 2731, 3440, 5160, 5462, 8193, 10320, 10924, 13655, 16386, 21848, 27310, 32772, 40965, 43696, 54620, 65544, 81930, 109240, 117433, 131088, 163860, 218480, 234866, 327720, 352299, 469732, 587165, 655440, 704598, 939464, 1174330, 1409196, 1761495, 1878928, 2348660, 2818392, 3522990, 4697320, 5636784, 7045980, 9394640, 14091960, 28183920]

約数ペア:

[(1, 28183920), (2, 14091960), (3, 9394640), (4, 7045980), (5, 5636784), (6, 4697320), (8, 3522990), (10, 2818392), (12, 2348660), (15, 1878928), (16, 1761495), (20, 1409196), (24, 1174330), (30, 939464), (40, 704598), (43, 655440), (48, 587165), (60, 469732), (80, 352299), (86, 327720), (120, 234866), (129, 218480), (172, 163860), (215, 131088), (240, 117433), (258, 109240), (344, 81930), (430, 65544), (516, 54620), (645, 43696), (688, 40965), (860, 32772), (1032, 27310), (1290, 21848), (1720, 16386), (2064, 13655), (2580, 10924), (2731, 10320), (3440, 8193), (5160, 5462)]