251922440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{311}}^1$

素因数の和:603

約数の個数: 128

約数和(自身を含む): 711659520

約数和(自身を除く): 459737080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 263, 280, 308, 311, 385, 440, 526, 616, 622, 770, 1052, 1244, 1315, 1540, 1555, 1841, 2104, 2177, 2488, 2630, 2893, 3080, 3110, 3421, 3682, 4354, 5260, 5786, 6220, 6842, 7364, 8708, 9205, 10520, 10885, 11572, 12440, 13684, 14465, 14728, 17105, 17416, 18410, 20251, 21770, 23144, 23947, 27368, 28930, 34210, 36820, 40502, 43540, 47894, 57860, 68420, 73640, 81004, 81793, 87080, 95788, 101255, 115720, 119735, 136840, 162008, 163586, 191576, 202510, 239470, 327172, 405020, 408965, 478940, 572551, 654344, 810040, 817930, 899723, 957880, 1145102, 1635860, 1799446, 2290204, 2862755, 3271720, 3598892, 4498615, 4580408, 5725510, 6298061, 7197784, 8997230, 11451020, 12596122, 17994460, 22902040, 25192244, 31490305, 35988920, 50384488, 62980610, 125961220, 251922440]

約数ペア:

[(1, 251922440), (2, 125961220), (4, 62980610), (5, 50384488), (7, 35988920), (8, 31490305), (10, 25192244), (11, 22902040), (14, 17994460), (20, 12596122), (22, 11451020), (28, 8997230), (35, 7197784), (40, 6298061), (44, 5725510), (55, 4580408), (56, 4498615), (70, 3598892), (77, 3271720), (88, 2862755), (110, 2290204), (140, 1799446), (154, 1635860), (220, 1145102), (263, 957880), (280, 899723), (308, 817930), (311, 810040), (385, 654344), (440, 572551), (526, 478940), (616, 408965), (622, 405020), (770, 327172), (1052, 239470), (1244, 202510), (1315, 191576), (1540, 163586), (1555, 162008), (1841, 136840), (2104, 119735), (2177, 115720), (2488, 101255), (2630, 95788), (2893, 87080), (3080, 81793), (3110, 81004), (3421, 73640), (3682, 68420), (4354, 57860), (5260, 47894), (5786, 43540), (6220, 40502), (6842, 36820), (7364, 34210), (8708, 28930), (9205, 27368), (10520, 23947), (10885, 23144), (11572, 21770), (12440, 20251), (13684, 18410), (14465, 17416), (14728, 17105)]