1325351680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 3315400704

約数和(自身を除く): 1990049024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 263, 310, 320, 496, 508, 526, 620, 635, 640, 992, 1016, 1052, 1240, 1270, 1280, 1315, 1984, 2032, 2104, 2480, 2540, 2630, 3937, 3968, 4064, 4208, 4960, 5080, 5260, 7874, 7936, 8128, 8153, 8416, 9920, 10160, 10520, 15748, 16256, 16306, 16832, 19685, 19840, 20320, 21040, 31496, 32512, 32612, 33401, 33664, 39370, 39680, 40640, 40765, 42080, 62992, 65224, 66802, 67328, 78740, 81280, 81530, 84160, 125984, 130448, 133604, 157480, 162560, 163060, 167005, 168320, 251968, 260896, 267208, 314960, 326120, 334010, 336640, 503936, 521792, 534416, 629920, 652240, 668020, 1007872, 1035431, 1043584, 1068832, 1259840, 1304480, 1336040, 2070862, 2087168, 2137664, 2519680, 2608960, 2672080, 4141724, 4275328, 5039360, 5177155, 5217920, 5344160, 8283448, 8550656, 10354310, 10435840, 10688320, 16566896, 20708620, 21376640, 33133792, 41417240, 42753280, 66267584, 82834480, 132535168, 165668960, 265070336, 331337920, 662675840, 1325351680]

約数ペア:

[(1, 1325351680), (2, 662675840), (4, 331337920), (5, 265070336), (8, 165668960), (10, 132535168), (16, 82834480), (20, 66267584), (31, 42753280), (32, 41417240), (40, 33133792), (62, 21376640), (64, 20708620), (80, 16566896), (124, 10688320), (127, 10435840), (128, 10354310), (155, 8550656), (160, 8283448), (248, 5344160), (254, 5217920), (256, 5177155), (263, 5039360), (310, 4275328), (320, 4141724), (496, 2672080), (508, 2608960), (526, 2519680), (620, 2137664), (635, 2087168), (640, 2070862), (992, 1336040), (1016, 1304480), (1052, 1259840), (1240, 1068832), (1270, 1043584), (1280, 1035431), (1315, 1007872), (1984, 668020), (2032, 652240), (2104, 629920), (2480, 534416), (2540, 521792), (2630, 503936), (3937, 336640), (3968, 334010), (4064, 326120), (4208, 314960), (4960, 267208), (5080, 260896), (5260, 251968), (7874, 168320), (7936, 167005), (8128, 163060), (8153, 162560), (8416, 157480), (9920, 133604), (10160, 130448), (10520, 125984), (15748, 84160), (16256, 81530), (16306, 81280), (16832, 78740), (19685, 67328), (19840, 66802), (20320, 65224), (21040, 62992), (31496, 42080), (32512, 40765), (32612, 40640), (33401, 39680), (33664, 39370)]