279497680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 240

約数和(自身を含む): 866123136

約数和(自身を除く): 586625456

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 110, 112, 119, 136, 140, 154, 157, 170, 176, 187, 220, 238, 272, 280, 289, 308, 314, 340, 374, 385, 440, 476, 560, 578, 595, 616, 628, 680, 748, 770, 785, 880, 935, 952, 1099, 1156, 1190, 1232, 1256, 1309, 1360, 1445, 1496, 1540, 1570, 1727, 1870, 1904, 2023, 2198, 2312, 2380, 2512, 2618, 2669, 2890, 2992, 3080, 3140, 3179, 3454, 3740, 4046, 4396, 4624, 4760, 5236, 5338, 5495, 5780, 6160, 6280, 6358, 6545, 6908, 7480, 8092, 8635, 8792, 9520, 10115, 10472, 10676, 10990, 11560, 12089, 12560, 12716, 13090, 13345, 13816, 14960, 15895, 16184, 17270, 17584, 18683, 20230, 20944, 21352, 21980, 22253, 23120, 24178, 25432, 26180, 26690, 27632, 29359, 31790, 32368, 34540, 37366, 40460, 42704, 43960, 44506, 45373, 48356, 50864, 52360, 53380, 58718, 60445, 63580, 69080, 74732, 80920, 87920, 89012, 90746, 93415, 96712, 104720, 106760, 111265, 117436, 120890, 127160, 138160, 146795, 149464, 161840, 178024, 181492, 186830, 193424, 205513, 213520, 222530, 226865, 234872, 241780, 254320, 293590, 298928, 317611, 356048, 362984, 373660, 411026, 445060, 453730, 469744, 483560, 499103, 587180, 635222, 725968, 747320, 822052, 890120, 907460, 967120, 998206, 1027565, 1174360, 1270444, 1494640, 1588055, 1644104, 1780240, 1814920, 1996412, 2055130, 2348720, 2495515, 2540888, 3176110, 3288208, 3493721, 3629840, 3992824, 4110260, 4991030, 5081776, 6352220, 6987442, 7985648, 8220520, 9982060, 12704440, 13974884, 16441040, 17468605, 19964120, 25408880, 27949768, 34937210, 39928240, 55899536, 69874420, 139748840, 279497680]

約数ペア:

[(1, 279497680), (2, 139748840), (4, 69874420), (5, 55899536), (7, 39928240), (8, 34937210), (10, 27949768), (11, 25408880), (14, 19964120), (16, 17468605), (17, 16441040), (20, 13974884), (22, 12704440), (28, 9982060), (34, 8220520), (35, 7985648), (40, 6987442), (44, 6352220), (55, 5081776), (56, 4991030), (68, 4110260), (70, 3992824), (77, 3629840), (80, 3493721), (85, 3288208), (88, 3176110), (110, 2540888), (112, 2495515), (119, 2348720), (136, 2055130), (140, 1996412), (154, 1814920), (157, 1780240), (170, 1644104), (176, 1588055), (187, 1494640), (220, 1270444), (238, 1174360), (272, 1027565), (280, 998206), (289, 967120), (308, 907460), (314, 890120), (340, 822052), (374, 747320), (385, 725968), (440, 635222), (476, 587180), (560, 499103), (578, 483560), (595, 469744), (616, 453730), (628, 445060), (680, 411026), (748, 373660), (770, 362984), (785, 356048), (880, 317611), (935, 298928), (952, 293590), (1099, 254320), (1156, 241780), (1190, 234872), (1232, 226865), (1256, 222530), (1309, 213520), (1360, 205513), (1445, 193424), (1496, 186830), (1540, 181492), (1570, 178024), (1727, 161840), (1870, 149464), (1904, 146795), (2023, 138160), (2198, 127160), (2312, 120890), (2380, 117436), (2512, 111265), (2618, 106760), (2669, 104720), (2890, 96712), (2992, 93415), (3080, 90746), (3140, 89012), (3179, 87920), (3454, 80920), (3740, 74732), (4046, 69080), (4396, 63580), (4624, 60445), (4760, 58718), (5236, 53380), (5338, 52360), (5495, 50864), (5780, 48356), (6160, 45373), (6280, 44506), (6358, 43960), (6545, 42704), (6908, 40460), (7480, 37366), (8092, 34540), (8635, 32368), (8792, 31790), (9520, 29359), (10115, 27632), (10472, 26690), (10676, 26180), (10990, 25432), (11560, 24178), (12089, 23120), (12560, 22253), (12716, 21980), (13090, 21352), (13345, 20944), (13816, 20230), (14960, 18683), (15895, 17584), (16184, 17270)]