256444320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2857}}^1$

素因数の和:2903

約数の個数: 192

約数和(自身を含む): 933399936

約数和(自身を除く): 676955616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 96, 102, 110, 120, 132, 136, 160, 165, 170, 176, 187, 204, 220, 240, 255, 264, 272, 330, 340, 352, 374, 408, 440, 480, 510, 528, 544, 561, 660, 680, 748, 816, 880, 935, 1020, 1056, 1122, 1320, 1360, 1496, 1632, 1760, 1870, 2040, 2244, 2640, 2720, 2805, 2857, 2992, 3740, 4080, 4488, 5280, 5610, 5714, 5984, 7480, 8160, 8571, 8976, 11220, 11428, 14285, 14960, 17142, 17952, 22440, 22856, 28570, 29920, 31427, 34284, 42855, 44880, 45712, 48569, 57140, 62854, 68568, 85710, 89760, 91424, 94281, 97138, 114280, 125708, 137136, 145707, 157135, 171420, 188562, 194276, 228560, 242845, 251416, 274272, 291414, 314270, 342840, 377124, 388552, 457120, 471405, 485690, 502832, 534259, 582828, 628540, 685680, 728535, 754248, 777104, 942810, 971380, 1005664, 1068518, 1165656, 1257080, 1371360, 1457070, 1508496, 1554208, 1602777, 1885620, 1942760, 2137036, 2331312, 2514160, 2671295, 2914140, 3016992, 3205554, 3771240, 3885520, 4274072, 4662624, 5028320, 5342590, 5828280, 6411108, 7542480, 7771040, 8013885, 8548144, 10685180, 11656560, 12822216, 15084960, 16027770, 17096288, 21370360, 23313120, 25644432, 32055540, 42740720, 51288864, 64111080, 85481440, 128222160, 256444320]

約数ペア:

[(1, 256444320), (2, 128222160), (3, 85481440), (4, 64111080), (5, 51288864), (6, 42740720), (8, 32055540), (10, 25644432), (11, 23313120), (12, 21370360), (15, 17096288), (16, 16027770), (17, 15084960), (20, 12822216), (22, 11656560), (24, 10685180), (30, 8548144), (32, 8013885), (33, 7771040), (34, 7542480), (40, 6411108), (44, 5828280), (48, 5342590), (51, 5028320), (55, 4662624), (60, 4274072), (66, 3885520), (68, 3771240), (80, 3205554), (85, 3016992), (88, 2914140), (96, 2671295), (102, 2514160), (110, 2331312), (120, 2137036), (132, 1942760), (136, 1885620), (160, 1602777), (165, 1554208), (170, 1508496), (176, 1457070), (187, 1371360), (204, 1257080), (220, 1165656), (240, 1068518), (255, 1005664), (264, 971380), (272, 942810), (330, 777104), (340, 754248), (352, 728535), (374, 685680), (408, 628540), (440, 582828), (480, 534259), (510, 502832), (528, 485690), (544, 471405), (561, 457120), (660, 388552), (680, 377124), (748, 342840), (816, 314270), (880, 291414), (935, 274272), (1020, 251416), (1056, 242845), (1122, 228560), (1320, 194276), (1360, 188562), (1496, 171420), (1632, 157135), (1760, 145707), (1870, 137136), (2040, 125708), (2244, 114280), (2640, 97138), (2720, 94281), (2805, 91424), (2857, 89760), (2992, 85710), (3740, 68568), (4080, 62854), (4488, 57140), (5280, 48569), (5610, 45712), (5714, 44880), (5984, 42855), (7480, 34284), (8160, 31427), (8571, 29920), (8976, 28570), (11220, 22856), (11428, 22440), (14285, 17952), (14960, 17142)]