996870875

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:334

約数の個数: 128

約数和(自身を含む): 1730985984

約数和(自身を除く): 734115109

約数列:

[1, 5, 7, 11, 13, 25, 31, 35, 55, 65, 77, 91, 125, 143, 155, 175, 217, 257, 275, 325, 341, 385, 403, 455, 715, 775, 875, 1001, 1085, 1285, 1375, 1625, 1705, 1799, 1925, 2015, 2275, 2387, 2821, 2827, 3341, 3575, 3875, 4433, 5005, 5425, 6425, 7967, 8525, 8995, 9625, 10075, 11375, 11935, 14105, 14135, 16705, 17875, 19789, 22165, 23387, 25025, 27125, 31031, 32125, 36751, 39835, 42625, 44975, 50375, 55769, 59675, 70525, 70675, 83525, 87637, 98945, 103571, 110825, 116935, 125125, 155155, 183755, 199175, 224875, 257257, 278845, 298375, 352625, 353375, 417625, 438185, 494725, 517855, 554125, 584675, 613459, 724997, 775775, 918775, 995875, 1139281, 1286285, 1394225, 2190925, 2473625, 2589275, 2923375, 3067295, 3624985, 3878875, 4593875, 5696405, 6431425, 6971125, 7974967, 10954625, 12946375, 15336475, 18124925, 28482025, 32157125, 39874835, 76682375, 90624625, 142410125, 199374175, 996870875]

約数ペア:

[(1, 996870875), (5, 199374175), (7, 142410125), (11, 90624625), (13, 76682375), (25, 39874835), (31, 32157125), (35, 28482025), (55, 18124925), (65, 15336475), (77, 12946375), (91, 10954625), (125, 7974967), (143, 6971125), (155, 6431425), (175, 5696405), (217, 4593875), (257, 3878875), (275, 3624985), (325, 3067295), (341, 2923375), (385, 2589275), (403, 2473625), (455, 2190925), (715, 1394225), (775, 1286285), (875, 1139281), (1001, 995875), (1085, 918775), (1285, 775775), (1375, 724997), (1625, 613459), (1705, 584675), (1799, 554125), (1925, 517855), (2015, 494725), (2275, 438185), (2387, 417625), (2821, 353375), (2827, 352625), (3341, 298375), (3575, 278845), (3875, 257257), (4433, 224875), (5005, 199175), (5425, 183755), (6425, 155155), (7967, 125125), (8525, 116935), (8995, 110825), (9625, 103571), (10075, 98945), (11375, 87637), (11935, 83525), (14105, 70675), (14135, 70525), (16705, 59675), (17875, 55769), (19789, 50375), (22165, 44975), (23387, 42625), (25025, 39835), (27125, 36751), (31031, 32125)]