1285407640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{23003}}^1$

素因数の和:23152

約数の個数: 64

約数和(自身を含む): 3180072960

約数和(自身を除く): 1894665320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 127, 220, 254, 440, 508, 635, 1016, 1270, 1397, 2540, 2794, 5080, 5588, 6985, 11176, 13970, 23003, 27940, 46006, 55880, 92012, 115015, 184024, 230030, 253033, 460060, 506066, 920120, 1012132, 1265165, 2024264, 2530330, 2921381, 5060660, 5842762, 10121320, 11685524, 14606905, 23371048, 29213810, 32135191, 58427620, 64270382, 116855240, 128540764, 160675955, 257081528, 321351910, 642703820, 1285407640]

約数ペア:

[(1, 1285407640), (2, 642703820), (4, 321351910), (5, 257081528), (8, 160675955), (10, 128540764), (11, 116855240), (20, 64270382), (22, 58427620), (40, 32135191), (44, 29213810), (55, 23371048), (88, 14606905), (110, 11685524), (127, 10121320), (220, 5842762), (254, 5060660), (440, 2921381), (508, 2530330), (635, 2024264), (1016, 1265165), (1270, 1012132), (1397, 920120), (2540, 506066), (2794, 460060), (5080, 253033), (5588, 230030), (6985, 184024), (11176, 115015), (13970, 92012), (23003, 55880), (27940, 46006)]