21875212920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{64483}}^1$

素因数の和:64765

約数の個数: 128

約数和(自身を含む): 71871287040

約数和(自身を除く): 49996074120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 257, 264, 330, 440, 514, 660, 771, 1028, 1285, 1320, 1542, 2056, 2570, 2827, 3084, 3855, 5140, 5654, 6168, 7710, 8481, 10280, 11308, 14135, 15420, 16962, 22616, 28270, 30840, 33924, 42405, 56540, 64483, 67848, 84810, 113080, 128966, 169620, 193449, 257932, 322415, 339240, 386898, 515864, 644830, 709313, 773796, 967245, 1289660, 1418626, 1547592, 1934490, 2127939, 2579320, 2837252, 3546565, 3868980, 4255878, 5674504, 7093130, 7737960, 8511756, 10639695, 14186260, 16572131, 17023512, 21279390, 28372520, 33144262, 42558780, 49716393, 66288524, 82860655, 85117560, 99432786, 132577048, 165721310, 182293441, 198865572, 248581965, 331442620, 364586882, 397731144, 497163930, 546880323, 662885240, 729173764, 911467205, 994327860, 1093760646, 1458347528, 1822934410, 1988655720, 2187521292, 2734401615, 3645868820, 4375042584, 5468803230, 7291737640, 10937606460, 21875212920]

約数ペア:

[(1, 21875212920), (2, 10937606460), (3, 7291737640), (4, 5468803230), (5, 4375042584), (6, 3645868820), (8, 2734401615), (10, 2187521292), (11, 1988655720), (12, 1822934410), (15, 1458347528), (20, 1093760646), (22, 994327860), (24, 911467205), (30, 729173764), (33, 662885240), (40, 546880323), (44, 497163930), (55, 397731144), (60, 364586882), (66, 331442620), (88, 248581965), (110, 198865572), (120, 182293441), (132, 165721310), (165, 132577048), (220, 99432786), (257, 85117560), (264, 82860655), (330, 66288524), (440, 49716393), (514, 42558780), (660, 33144262), (771, 28372520), (1028, 21279390), (1285, 17023512), (1320, 16572131), (1542, 14186260), (2056, 10639695), (2570, 8511756), (2827, 7737960), (3084, 7093130), (3855, 5674504), (5140, 4255878), (5654, 3868980), (6168, 3546565), (7710, 2837252), (8481, 2579320), (10280, 2127939), (11308, 1934490), (14135, 1547592), (15420, 1418626), (16962, 1289660), (22616, 967245), (28270, 773796), (30840, 709313), (33924, 644830), (42405, 515864), (56540, 386898), (64483, 339240), (67848, 322415), (84810, 257932), (113080, 193449), (128966, 169620)]