20122960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1759}}^1$

素因数の和:1796

約数の個数: 80

約数和(自身を含む): 54996480

約数和(自身を除く): 34873520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1759, 2288, 2860, 3518, 5720, 7036, 8795, 11440, 14072, 17590, 19349, 22867, 28144, 35180, 38698, 45734, 70360, 77396, 91468, 96745, 114335, 140720, 154792, 182936, 193490, 228670, 251537, 309584, 365872, 386980, 457340, 503074, 773960, 914680, 1006148, 1257685, 1547920, 1829360, 2012296, 2515370, 4024592, 5030740, 10061480, 20122960]

約数ペア:

[(1, 20122960), (2, 10061480), (4, 5030740), (5, 4024592), (8, 2515370), (10, 2012296), (11, 1829360), (13, 1547920), (16, 1257685), (20, 1006148), (22, 914680), (26, 773960), (40, 503074), (44, 457340), (52, 386980), (55, 365872), (65, 309584), (80, 251537), (88, 228670), (104, 193490), (110, 182936), (130, 154792), (143, 140720), (176, 114335), (208, 96745), (220, 91468), (260, 77396), (286, 70360), (440, 45734), (520, 38698), (572, 35180), (715, 28144), (880, 22867), (1040, 19349), (1144, 17590), (1430, 14072), (1759, 11440), (2288, 8795), (2860, 7036), (3518, 5720)]