256121280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:923

約数の個数: 168

約数和(自身を含む): 889875792

約数和(自身を除く): 633754512

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 113, 120, 144, 160, 180, 192, 226, 240, 288, 320, 339, 360, 452, 480, 565, 576, 678, 720, 787, 904, 960, 1017, 1130, 1356, 1440, 1574, 1695, 1808, 2034, 2260, 2361, 2712, 2880, 3148, 3390, 3616, 3935, 4068, 4520, 4722, 5085, 5424, 6296, 6780, 7083, 7232, 7870, 8136, 9040, 9444, 10170, 10848, 11805, 12592, 13560, 14166, 15740, 16272, 18080, 18888, 20340, 21696, 23610, 25184, 27120, 28332, 31480, 32544, 35415, 36160, 37776, 40680, 47220, 50368, 54240, 56664, 62960, 65088, 70830, 75552, 81360, 88931, 94440, 108480, 113328, 125920, 141660, 151104, 162720, 177862, 188880, 226656, 251840, 266793, 283320, 325440, 355724, 377760, 444655, 453312, 533586, 566640, 711448, 755520, 800379, 889310, 1067172, 1133280, 1333965, 1422896, 1600758, 1778620, 2134344, 2266560, 2667930, 2845792, 3201516, 3557240, 4001895, 4268688, 5335860, 5691584, 6403032, 7114480, 8003790, 8537376, 10671720, 12806064, 14228960, 16007580, 17074752, 21343440, 25612128, 28457920, 32015160, 42686880, 51224256, 64030320, 85373760, 128060640, 256121280]

約数ペア:

[(1, 256121280), (2, 128060640), (3, 85373760), (4, 64030320), (5, 51224256), (6, 42686880), (8, 32015160), (9, 28457920), (10, 25612128), (12, 21343440), (15, 17074752), (16, 16007580), (18, 14228960), (20, 12806064), (24, 10671720), (30, 8537376), (32, 8003790), (36, 7114480), (40, 6403032), (45, 5691584), (48, 5335860), (60, 4268688), (64, 4001895), (72, 3557240), (80, 3201516), (90, 2845792), (96, 2667930), (113, 2266560), (120, 2134344), (144, 1778620), (160, 1600758), (180, 1422896), (192, 1333965), (226, 1133280), (240, 1067172), (288, 889310), (320, 800379), (339, 755520), (360, 711448), (452, 566640), (480, 533586), (565, 453312), (576, 444655), (678, 377760), (720, 355724), (787, 325440), (904, 283320), (960, 266793), (1017, 251840), (1130, 226656), (1356, 188880), (1440, 177862), (1574, 162720), (1695, 151104), (1808, 141660), (2034, 125920), (2260, 113328), (2361, 108480), (2712, 94440), (2880, 88931), (3148, 81360), (3390, 75552), (3616, 70830), (3935, 65088), (4068, 62960), (4520, 56664), (4722, 54240), (5085, 50368), (5424, 47220), (6296, 40680), (6780, 37776), (7083, 36160), (7232, 35415), (7870, 32544), (8136, 31480), (9040, 28332), (9444, 27120), (10170, 25184), (10848, 23610), (11805, 21696), (12592, 20340), (13560, 18888), (14166, 18080), (15740, 16272)]