77812920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:790

約数の個数: 128

約数和(自身を含む): 262152000

約数和(自身を除く): 184339080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 109, 120, 135, 180, 216, 218, 270, 327, 360, 436, 540, 545, 654, 661, 872, 981, 1080, 1090, 1308, 1322, 1635, 1962, 1983, 2180, 2616, 2644, 2943, 3270, 3305, 3924, 3966, 4360, 4905, 5288, 5886, 5949, 6540, 6610, 7848, 7932, 9810, 9915, 11772, 11898, 13080, 13220, 14715, 15864, 17847, 19620, 19830, 23544, 23796, 26440, 29430, 29745, 35694, 39240, 39660, 47592, 58860, 59490, 71388, 72049, 79320, 89235, 117720, 118980, 142776, 144098, 178470, 216147, 237960, 288196, 356940, 360245, 432294, 576392, 648441, 713880, 720490, 864588, 1080735, 1296882, 1440980, 1729176, 1945323, 2161470, 2593764, 2881960, 3242205, 3890646, 4322940, 5187528, 6484410, 7781292, 8645880, 9726615, 12968820, 15562584, 19453230, 25937640, 38906460, 77812920]

約数ペア:

[(1, 77812920), (2, 38906460), (3, 25937640), (4, 19453230), (5, 15562584), (6, 12968820), (8, 9726615), (9, 8645880), (10, 7781292), (12, 6484410), (15, 5187528), (18, 4322940), (20, 3890646), (24, 3242205), (27, 2881960), (30, 2593764), (36, 2161470), (40, 1945323), (45, 1729176), (54, 1440980), (60, 1296882), (72, 1080735), (90, 864588), (108, 720490), (109, 713880), (120, 648441), (135, 576392), (180, 432294), (216, 360245), (218, 356940), (270, 288196), (327, 237960), (360, 216147), (436, 178470), (540, 144098), (545, 142776), (654, 118980), (661, 117720), (872, 89235), (981, 79320), (1080, 72049), (1090, 71388), (1308, 59490), (1322, 58860), (1635, 47592), (1962, 39660), (1983, 39240), (2180, 35694), (2616, 29745), (2644, 29430), (2943, 26440), (3270, 23796), (3305, 23544), (3924, 19830), (3966, 19620), (4360, 17847), (4905, 15864), (5288, 14715), (5886, 13220), (5949, 13080), (6540, 11898), (6610, 11772), (7848, 9915), (7932, 9810)]