256333275

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 571392000

約数和(自身を除く): 315058725

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 25, 27, 33, 45, 55, 57, 69, 75, 79, 95, 99, 115, 135, 165, 171, 207, 209, 225, 237, 253, 275, 285, 297, 345, 395, 437, 475, 495, 513, 575, 621, 627, 675, 711, 759, 825, 855, 869, 1035, 1045, 1185, 1265, 1311, 1425, 1485, 1501, 1725, 1817, 1881, 1975, 2133, 2185, 2277, 2475, 2565, 2607, 3105, 3135, 3555, 3795, 3933, 4275, 4345, 4503, 4807, 5175, 5225, 5451, 5643, 5925, 6325, 6555, 6831, 7425, 7505, 7821, 9085, 9405, 10665, 10925, 11385, 11799, 12825, 13035, 13509, 14421, 15525, 15675, 16353, 16511, 17775, 18975, 19665, 19987, 21725, 22515, 23463, 24035, 27255, 28215, 32775, 34155, 34523, 37525, 39105, 40527, 43263, 45425, 47025, 49059, 49533, 53325, 56925, 58995, 59961, 65175, 67545, 72105, 81765, 82555, 98325, 99935, 103569, 112575, 117315, 120175, 129789, 136275, 141075, 148599, 170775, 172615, 179883, 195525, 202635, 216315, 245295, 247665, 294975, 299805, 310707, 337725, 360525, 379753, 408825, 412775, 445797, 499675, 517845, 539649, 586575, 648945, 742995, 863075, 899415, 932121, 1013175, 1081575, 1139259, 1226475, 1238325, 1499025, 1553535, 1898765, 2228985, 2589225, 2698245, 3244725, 3417777, 3714975, 4497075, 4660605, 5696295, 7767675, 9493825, 10253331, 11144925, 13491225, 17088885, 23303025, 28481475, 51266655, 85444425, 256333275]

約数ペア:

[(1, 256333275), (3, 85444425), (5, 51266655), (9, 28481475), (11, 23303025), (15, 17088885), (19, 13491225), (23, 11144925), (25, 10253331), (27, 9493825), (33, 7767675), (45, 5696295), (55, 4660605), (57, 4497075), (69, 3714975), (75, 3417777), (79, 3244725), (95, 2698245), (99, 2589225), (115, 2228985), (135, 1898765), (165, 1553535), (171, 1499025), (207, 1238325), (209, 1226475), (225, 1139259), (237, 1081575), (253, 1013175), (275, 932121), (285, 899415), (297, 863075), (345, 742995), (395, 648945), (437, 586575), (475, 539649), (495, 517845), (513, 499675), (575, 445797), (621, 412775), (627, 408825), (675, 379753), (711, 360525), (759, 337725), (825, 310707), (855, 299805), (869, 294975), (1035, 247665), (1045, 245295), (1185, 216315), (1265, 202635), (1311, 195525), (1425, 179883), (1485, 172615), (1501, 170775), (1725, 148599), (1817, 141075), (1881, 136275), (1975, 129789), (2133, 120175), (2185, 117315), (2277, 112575), (2475, 103569), (2565, 99935), (2607, 98325), (3105, 82555), (3135, 81765), (3555, 72105), (3795, 67545), (3933, 65175), (4275, 59961), (4345, 58995), (4503, 56925), (4807, 53325), (5175, 49533), (5225, 49059), (5451, 47025), (5643, 45425), (5925, 43263), (6325, 40527), (6555, 39105), (6831, 37525), (7425, 34523), (7505, 34155), (7821, 32775), (9085, 28215), (9405, 27255), (10665, 24035), (10925, 23463), (11385, 22515), (11799, 21725), (12825, 19987), (13035, 19665), (13509, 18975), (14421, 17775), (15525, 16511), (15675, 16353)]