20836620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:764

約数の個数: 144

約数和(自身を含む): 75479040

約数和(自身を除く): 54642420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 719, 805, 828, 966, 1035, 1260, 1380, 1438, 1449, 1610, 1932, 2070, 2157, 2415, 2876, 2898, 3220, 3595, 4140, 4314, 4830, 5033, 5796, 6471, 7190, 7245, 8628, 9660, 10066, 10785, 12942, 14380, 14490, 15099, 16537, 20132, 21570, 25165, 25884, 28980, 30198, 32355, 33074, 43140, 45297, 49611, 50330, 60396, 64710, 66148, 75495, 82685, 90594, 99222, 100660, 115759, 129420, 148833, 150990, 165370, 181188, 198444, 226485, 231518, 248055, 297666, 301980, 330740, 347277, 452970, 463036, 496110, 578795, 595332, 694554, 744165, 905940, 992220, 1041831, 1157590, 1389108, 1488330, 1736385, 2083662, 2315180, 2976660, 3472770, 4167324, 5209155, 6945540, 10418310, 20836620]

約数ペア:

[(1, 20836620), (2, 10418310), (3, 6945540), (4, 5209155), (5, 4167324), (6, 3472770), (7, 2976660), (9, 2315180), (10, 2083662), (12, 1736385), (14, 1488330), (15, 1389108), (18, 1157590), (20, 1041831), (21, 992220), (23, 905940), (28, 744165), (30, 694554), (35, 595332), (36, 578795), (42, 496110), (45, 463036), (46, 452970), (60, 347277), (63, 330740), (69, 301980), (70, 297666), (84, 248055), (90, 231518), (92, 226485), (105, 198444), (115, 181188), (126, 165370), (138, 150990), (140, 148833), (161, 129420), (180, 115759), (207, 100660), (210, 99222), (230, 90594), (252, 82685), (276, 75495), (315, 66148), (322, 64710), (345, 60396), (414, 50330), (420, 49611), (460, 45297), (483, 43140), (630, 33074), (644, 32355), (690, 30198), (719, 28980), (805, 25884), (828, 25165), (966, 21570), (1035, 20132), (1260, 16537), (1380, 15099), (1438, 14490), (1449, 14380), (1610, 12942), (1932, 10785), (2070, 10066), (2157, 9660), (2415, 8628), (2876, 7245), (2898, 7190), (3220, 6471), (3595, 5796), (4140, 5033), (4314, 4830)]