280075640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4241}}^1$

素因数の和:4392

約数の個数: 64

約数和(自身を含む): 684149760

約数和(自身を除く): 404074120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 508, 520, 635, 1016, 1270, 1651, 2540, 3302, 4241, 5080, 6604, 8255, 8482, 13208, 16510, 16964, 21205, 33020, 33928, 42410, 55133, 66040, 84820, 110266, 169640, 220532, 275665, 441064, 538607, 551330, 1077214, 1102660, 2154428, 2205320, 2693035, 4308856, 5386070, 7001891, 10772140, 14003782, 21544280, 28007564, 35009455, 56015128, 70018910, 140037820, 280075640]

約数ペア:

[(1, 280075640), (2, 140037820), (4, 70018910), (5, 56015128), (8, 35009455), (10, 28007564), (13, 21544280), (20, 14003782), (26, 10772140), (40, 7001891), (52, 5386070), (65, 4308856), (104, 2693035), (127, 2205320), (130, 2154428), (254, 1102660), (260, 1077214), (508, 551330), (520, 538607), (635, 441064), (1016, 275665), (1270, 220532), (1651, 169640), (2540, 110266), (3302, 84820), (4241, 66040), (5080, 55133), (6604, 42410), (8255, 33928), (8482, 33020), (13208, 21205), (16510, 16964)]