128640840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:531

約数の個数: 128

約数和(自身を含む): 406978560

約数和(自身を除く): 278337720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 127, 138, 184, 230, 254, 276, 345, 367, 381, 460, 508, 552, 635, 690, 734, 762, 920, 1016, 1101, 1270, 1380, 1468, 1524, 1835, 1905, 2202, 2540, 2760, 2921, 2936, 3048, 3670, 3810, 4404, 5080, 5505, 5842, 7340, 7620, 8441, 8763, 8808, 11010, 11684, 14605, 14680, 15240, 16882, 17526, 22020, 23368, 25323, 29210, 33764, 35052, 42205, 43815, 44040, 46609, 50646, 58420, 67528, 70104, 84410, 87630, 93218, 101292, 116840, 126615, 139827, 168820, 175260, 186436, 202584, 233045, 253230, 279654, 337640, 350520, 372872, 466090, 506460, 559308, 699135, 932180, 1012920, 1072007, 1118616, 1398270, 1864360, 2144014, 2796540, 3216021, 4288028, 5360035, 5593080, 6432042, 8576056, 10720070, 12864084, 16080105, 21440140, 25728168, 32160210, 42880280, 64320420, 128640840]

約数ペア:

[(1, 128640840), (2, 64320420), (3, 42880280), (4, 32160210), (5, 25728168), (6, 21440140), (8, 16080105), (10, 12864084), (12, 10720070), (15, 8576056), (20, 6432042), (23, 5593080), (24, 5360035), (30, 4288028), (40, 3216021), (46, 2796540), (60, 2144014), (69, 1864360), (92, 1398270), (115, 1118616), (120, 1072007), (127, 1012920), (138, 932180), (184, 699135), (230, 559308), (254, 506460), (276, 466090), (345, 372872), (367, 350520), (381, 337640), (460, 279654), (508, 253230), (552, 233045), (635, 202584), (690, 186436), (734, 175260), (762, 168820), (920, 139827), (1016, 126615), (1101, 116840), (1270, 101292), (1380, 93218), (1468, 87630), (1524, 84410), (1835, 70104), (1905, 67528), (2202, 58420), (2540, 50646), (2760, 46609), (2921, 44040), (2936, 43815), (3048, 42205), (3670, 35052), (3810, 33764), (4404, 29210), (5080, 25323), (5505, 23368), (5842, 22020), (7340, 17526), (7620, 16882), (8441, 15240), (8763, 14680), (8808, 14605), (11010, 11684)]