261264640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2243}}^1$

素因数の和:2284

約数の個数: 144

約数和(自身を含む): 770571648

約数和(自身を除く): 509307008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1820, 2080, 2240, 2243, 2912, 3328, 3640, 4160, 4480, 4486, 5824, 7280, 8320, 8960, 8972, 11215, 11648, 14560, 15701, 16640, 17944, 22430, 23296, 29120, 29159, 31402, 35888, 44860, 58240, 58318, 62804, 71776, 78505, 89720, 116480, 116636, 125608, 143552, 145795, 157010, 179440, 204113, 233272, 251216, 287104, 291590, 314020, 358880, 408226, 466544, 502432, 574208, 583180, 628040, 717760, 816452, 933088, 1004864, 1020565, 1166360, 1256080, 1435520, 1632904, 1866176, 2009728, 2041130, 2332720, 2512160, 2871040, 3265808, 3732352, 4019456, 4082260, 4665440, 5024320, 6531616, 7464704, 8164520, 9330880, 10048640, 13063232, 16329040, 18661760, 20097280, 26126464, 32658080, 37323520, 52252928, 65316160, 130632320, 261264640]

約数ペア:

[(1, 261264640), (2, 130632320), (4, 65316160), (5, 52252928), (7, 37323520), (8, 32658080), (10, 26126464), (13, 20097280), (14, 18661760), (16, 16329040), (20, 13063232), (26, 10048640), (28, 9330880), (32, 8164520), (35, 7464704), (40, 6531616), (52, 5024320), (56, 4665440), (64, 4082260), (65, 4019456), (70, 3732352), (80, 3265808), (91, 2871040), (104, 2512160), (112, 2332720), (128, 2041130), (130, 2009728), (140, 1866176), (160, 1632904), (182, 1435520), (208, 1256080), (224, 1166360), (256, 1020565), (260, 1004864), (280, 933088), (320, 816452), (364, 717760), (416, 628040), (448, 583180), (455, 574208), (520, 502432), (560, 466544), (640, 408226), (728, 358880), (832, 314020), (896, 291590), (910, 287104), (1040, 251216), (1120, 233272), (1280, 204113), (1456, 179440), (1664, 157010), (1792, 145795), (1820, 143552), (2080, 125608), (2240, 116636), (2243, 116480), (2912, 89720), (3328, 78505), (3640, 71776), (4160, 62804), (4480, 58318), (4486, 58240), (5824, 44860), (7280, 35888), (8320, 31402), (8960, 29159), (8972, 29120), (11215, 23296), (11648, 22430), (14560, 17944), (15701, 16640)]