257121480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27827}}^1$

素因数の和:27859

約数の個数: 128

約数和(自身を含む): 961735680

約数和(自身を除く): 704614200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 9240, 27827, 55654, 83481, 111308, 139135, 166962, 194789, 222616, 278270, 306097, 333924, 389578, 417405, 556540, 584367, 612194, 667848, 779156, 834810, 918291, 973945, 1113080, 1168734, 1224388, 1530485, 1558312, 1669620, 1836582, 1947890, 2142679, 2337468, 2448776, 2921835, 3060970, 3339240, 3673164, 3895780, 4285358, 4591455, 4674936, 5843670, 6121940, 6428037, 7346328, 7791560, 8570716, 9182910, 10713395, 11687340, 12243880, 12856074, 17141432, 18365820, 21426790, 23374680, 25712148, 32140185, 36731640, 42853580, 51424296, 64280370, 85707160, 128560740, 257121480]

約数ペア:

[(1, 257121480), (2, 128560740), (3, 85707160), (4, 64280370), (5, 51424296), (6, 42853580), (7, 36731640), (8, 32140185), (10, 25712148), (11, 23374680), (12, 21426790), (14, 18365820), (15, 17141432), (20, 12856074), (21, 12243880), (22, 11687340), (24, 10713395), (28, 9182910), (30, 8570716), (33, 7791560), (35, 7346328), (40, 6428037), (42, 6121940), (44, 5843670), (55, 4674936), (56, 4591455), (60, 4285358), (66, 3895780), (70, 3673164), (77, 3339240), (84, 3060970), (88, 2921835), (105, 2448776), (110, 2337468), (120, 2142679), (132, 1947890), (140, 1836582), (154, 1669620), (165, 1558312), (168, 1530485), (210, 1224388), (220, 1168734), (231, 1113080), (264, 973945), (280, 918291), (308, 834810), (330, 779156), (385, 667848), (420, 612194), (440, 584367), (462, 556540), (616, 417405), (660, 389578), (770, 333924), (840, 306097), (924, 278270), (1155, 222616), (1320, 194789), (1540, 166962), (1848, 139135), (2310, 111308), (3080, 83481), (4620, 55654), (9240, 27827)]