256410672

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:391

約数の個数: 160

約数和(自身を含む): 792330240

約数和(自身を除く): 535919568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 42, 48, 56, 62, 84, 93, 103, 112, 124, 168, 186, 206, 217, 239, 248, 309, 336, 372, 412, 434, 478, 496, 618, 651, 717, 721, 744, 824, 868, 956, 1236, 1302, 1434, 1442, 1488, 1648, 1673, 1736, 1912, 2163, 2472, 2604, 2868, 2884, 3193, 3346, 3472, 3824, 4326, 4944, 5019, 5208, 5736, 5768, 6386, 6692, 7409, 8652, 9579, 10038, 10416, 11472, 11536, 12772, 13384, 14818, 17304, 19158, 20076, 22227, 22351, 24617, 25544, 26768, 29636, 34608, 38316, 40152, 44454, 44702, 49234, 51088, 51863, 59272, 67053, 73851, 76632, 80304, 88908, 89404, 98468, 103726, 118544, 134106, 147702, 153264, 155589, 172319, 177816, 178808, 196936, 207452, 268212, 295404, 311178, 344638, 355632, 357616, 393872, 414904, 516957, 536424, 590808, 622356, 689276, 763127, 829808, 1033914, 1072848, 1181616, 1244712, 1378552, 1526254, 2067828, 2289381, 2489424, 2757104, 3052508, 4135656, 4578762, 5341889, 6105016, 8271312, 9157524, 10683778, 12210032, 16025667, 18315048, 21367556, 32051334, 36630096, 42735112, 64102668, 85470224, 128205336, 256410672]

約数ペア:

[(1, 256410672), (2, 128205336), (3, 85470224), (4, 64102668), (6, 42735112), (7, 36630096), (8, 32051334), (12, 21367556), (14, 18315048), (16, 16025667), (21, 12210032), (24, 10683778), (28, 9157524), (31, 8271312), (42, 6105016), (48, 5341889), (56, 4578762), (62, 4135656), (84, 3052508), (93, 2757104), (103, 2489424), (112, 2289381), (124, 2067828), (168, 1526254), (186, 1378552), (206, 1244712), (217, 1181616), (239, 1072848), (248, 1033914), (309, 829808), (336, 763127), (372, 689276), (412, 622356), (434, 590808), (478, 536424), (496, 516957), (618, 414904), (651, 393872), (717, 357616), (721, 355632), (744, 344638), (824, 311178), (868, 295404), (956, 268212), (1236, 207452), (1302, 196936), (1434, 178808), (1442, 177816), (1488, 172319), (1648, 155589), (1673, 153264), (1736, 147702), (1912, 134106), (2163, 118544), (2472, 103726), (2604, 98468), (2868, 89404), (2884, 88908), (3193, 80304), (3346, 76632), (3472, 73851), (3824, 67053), (4326, 59272), (4944, 51863), (5019, 51088), (5208, 49234), (5736, 44702), (5768, 44454), (6386, 40152), (6692, 38316), (7409, 34608), (8652, 29636), (9579, 26768), (10038, 25544), (10416, 24617), (11472, 22351), (11536, 22227), (12772, 20076), (13384, 19158), (14818, 17304)]