1275842920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:619

約数の個数: 128

約数和(自身を含む): 3233260800

約数和(自身を除く): 1957417880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 197, 205, 220, 328, 359, 394, 410, 440, 451, 718, 788, 820, 902, 985, 1436, 1576, 1640, 1795, 1804, 1970, 2167, 2255, 2872, 3590, 3608, 3940, 3949, 4334, 4510, 7180, 7880, 7898, 8077, 8668, 9020, 10835, 14360, 14719, 15796, 16154, 17336, 18040, 19745, 21670, 29438, 31592, 32308, 39490, 40385, 43340, 58876, 64616, 70723, 73595, 78980, 80770, 86680, 88847, 117752, 141446, 147190, 157960, 161540, 161909, 177694, 282892, 294380, 323080, 323818, 353615, 355388, 444235, 565784, 588760, 647636, 707230, 710776, 777953, 809545, 888470, 1295272, 1414460, 1555906, 1619090, 1776940, 2828920, 2899643, 3111812, 3238180, 3553880, 3889765, 5799286, 6223624, 6476360, 7779530, 11598572, 14498215, 15559060, 23197144, 28996430, 31118120, 31896073, 57992860, 63792146, 115985720, 127584292, 159480365, 255168584, 318960730, 637921460, 1275842920]

約数ペア:

[(1, 1275842920), (2, 637921460), (4, 318960730), (5, 255168584), (8, 159480365), (10, 127584292), (11, 115985720), (20, 63792146), (22, 57992860), (40, 31896073), (41, 31118120), (44, 28996430), (55, 23197144), (82, 15559060), (88, 14498215), (110, 11598572), (164, 7779530), (197, 6476360), (205, 6223624), (220, 5799286), (328, 3889765), (359, 3553880), (394, 3238180), (410, 3111812), (440, 2899643), (451, 2828920), (718, 1776940), (788, 1619090), (820, 1555906), (902, 1414460), (985, 1295272), (1436, 888470), (1576, 809545), (1640, 777953), (1795, 710776), (1804, 707230), (1970, 647636), (2167, 588760), (2255, 565784), (2872, 444235), (3590, 355388), (3608, 353615), (3940, 323818), (3949, 323080), (4334, 294380), (4510, 282892), (7180, 177694), (7880, 161909), (7898, 161540), (8077, 157960), (8668, 147190), (9020, 141446), (10835, 117752), (14360, 88847), (14719, 86680), (15796, 80770), (16154, 78980), (17336, 73595), (18040, 70723), (19745, 64616), (21670, 58876), (29438, 43340), (31592, 40385), (32308, 39490)]