20201621880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{355913}}^1$

素因数の和:355981

約数の個数: 128

約数和(自身を含む): 67652133120

約数和(自身を除く): 47450511240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 430, 440, 473, 516, 645, 660, 860, 946, 1032, 1290, 1320, 1419, 1720, 1892, 2365, 2580, 2838, 3784, 4730, 5160, 5676, 7095, 9460, 11352, 14190, 18920, 28380, 56760, 355913, 711826, 1067739, 1423652, 1779565, 2135478, 2847304, 3559130, 3915043, 4270956, 5338695, 7118260, 7830086, 8541912, 10677390, 11745129, 14236520, 15304259, 15660172, 19575215, 21354780, 23490258, 30608518, 31320344, 39150430, 42709560, 45912777, 46980516, 58725645, 61217036, 76521295, 78300860, 91825554, 93961032, 117451290, 122434072, 153042590, 156601720, 168346849, 183651108, 229563885, 234902580, 306085180, 336693698, 367302216, 459127770, 469805160, 505040547, 612170360, 673387396, 841734245, 918255540, 1010081094, 1346774792, 1683468490, 1836511080, 2020162188, 2525202735, 3366936980, 4040324376, 5050405470, 6733873960, 10100810940, 20201621880]

約数ペア:

[(1, 20201621880), (2, 10100810940), (3, 6733873960), (4, 5050405470), (5, 4040324376), (6, 3366936980), (8, 2525202735), (10, 2020162188), (11, 1836511080), (12, 1683468490), (15, 1346774792), (20, 1010081094), (22, 918255540), (24, 841734245), (30, 673387396), (33, 612170360), (40, 505040547), (43, 469805160), (44, 459127770), (55, 367302216), (60, 336693698), (66, 306085180), (86, 234902580), (88, 229563885), (110, 183651108), (120, 168346849), (129, 156601720), (132, 153042590), (165, 122434072), (172, 117451290), (215, 93961032), (220, 91825554), (258, 78300860), (264, 76521295), (330, 61217036), (344, 58725645), (430, 46980516), (440, 45912777), (473, 42709560), (516, 39150430), (645, 31320344), (660, 30608518), (860, 23490258), (946, 21354780), (1032, 19575215), (1290, 15660172), (1320, 15304259), (1419, 14236520), (1720, 11745129), (1892, 10677390), (2365, 8541912), (2580, 7830086), (2838, 7118260), (3784, 5338695), (4730, 4270956), (5160, 3915043), (5676, 3559130), (7095, 2847304), (9460, 2135478), (11352, 1779565), (14190, 1423652), (18920, 1067739), (28380, 711826), (56760, 355913)]