1285504640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{16879}}^1$

素因数の和:16922

約数の個数: 128

約数和(自身を含む): 3719001600

約数和(自身を除く): 2433496960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 640, 680, 896, 952, 1088, 1120, 1190, 1360, 1904, 2176, 2240, 2380, 2720, 3808, 4480, 4760, 5440, 7616, 9520, 10880, 15232, 16879, 19040, 33758, 38080, 67516, 76160, 84395, 118153, 135032, 168790, 236306, 270064, 286943, 337580, 472612, 540128, 573886, 590765, 675160, 945224, 1080256, 1147772, 1181530, 1350320, 1434715, 1890448, 2008601, 2160512, 2295544, 2363060, 2700640, 2869430, 3780896, 4017202, 4591088, 4726120, 5401280, 5738860, 7561792, 8034404, 9182176, 9452240, 10043005, 10802560, 11477720, 15123584, 16068808, 18364352, 18904480, 20086010, 22955440, 32137616, 36728704, 37808960, 40172020, 45910880, 64275232, 75617920, 80344040, 91821760, 128550464, 160688080, 183643520, 257100928, 321376160, 642752320, 1285504640]

約数ペア:

[(1, 1285504640), (2, 642752320), (4, 321376160), (5, 257100928), (7, 183643520), (8, 160688080), (10, 128550464), (14, 91821760), (16, 80344040), (17, 75617920), (20, 64275232), (28, 45910880), (32, 40172020), (34, 37808960), (35, 36728704), (40, 32137616), (56, 22955440), (64, 20086010), (68, 18904480), (70, 18364352), (80, 16068808), (85, 15123584), (112, 11477720), (119, 10802560), (128, 10043005), (136, 9452240), (140, 9182176), (160, 8034404), (170, 7561792), (224, 5738860), (238, 5401280), (272, 4726120), (280, 4591088), (320, 4017202), (340, 3780896), (448, 2869430), (476, 2700640), (544, 2363060), (560, 2295544), (595, 2160512), (640, 2008601), (680, 1890448), (896, 1434715), (952, 1350320), (1088, 1181530), (1120, 1147772), (1190, 1080256), (1360, 945224), (1904, 675160), (2176, 590765), (2240, 573886), (2380, 540128), (2720, 472612), (3808, 337580), (4480, 286943), (4760, 270064), (5440, 236306), (7616, 168790), (9520, 135032), (10880, 118153), (15232, 84395), (16879, 76160), (19040, 67516), (33758, 38080)]