257610780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{22717}}^1$

素因数の和:22745

約数の個数: 120

約数和(自身を含む): 923623008

約数和(自身を除く): 666012228

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 22717, 45434, 68151, 90868, 113585, 136302, 159019, 204453, 227170, 272604, 318038, 340755, 408906, 454340, 477057, 613359, 636076, 681510, 795095, 817812, 954114, 1022265, 1226718, 1363020, 1431171, 1590190, 1840077, 1908228, 2044530, 2385285, 2453436, 2862342, 3066795, 3180380, 3680154, 4089060, 4293513, 4770570, 5724684, 6133590, 7155855, 7360308, 8587026, 9200385, 9541140, 12267180, 12880539, 14311710, 17174052, 18400770, 21467565, 25761078, 28623420, 36801540, 42935130, 51522156, 64402695, 85870260, 128805390, 257610780]

約数ペア:

[(1, 257610780), (2, 128805390), (3, 85870260), (4, 64402695), (5, 51522156), (6, 42935130), (7, 36801540), (9, 28623420), (10, 25761078), (12, 21467565), (14, 18400770), (15, 17174052), (18, 14311710), (20, 12880539), (21, 12267180), (27, 9541140), (28, 9200385), (30, 8587026), (35, 7360308), (36, 7155855), (42, 6133590), (45, 5724684), (54, 4770570), (60, 4293513), (63, 4089060), (70, 3680154), (81, 3180380), (84, 3066795), (90, 2862342), (105, 2453436), (108, 2385285), (126, 2044530), (135, 1908228), (140, 1840077), (162, 1590190), (180, 1431171), (189, 1363020), (210, 1226718), (252, 1022265), (270, 954114), (315, 817812), (324, 795095), (378, 681510), (405, 636076), (420, 613359), (540, 477057), (567, 454340), (630, 408906), (756, 340755), (810, 318038), (945, 272604), (1134, 227170), (1260, 204453), (1620, 159019), (1890, 136302), (2268, 113585), (2835, 90868), (3780, 68151), (5670, 45434), (11340, 22717)]