67280640

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{2503}}^1$

素因数の和:2534

約数の個数: 144

約数和(自身を含む): 245672448

約数和(自身を除く): 178391808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2503, 2688, 3360, 3840, 4480, 5006, 5376, 6720, 7509, 8960, 10012, 12515, 13440, 15018, 17521, 20024, 25030, 26880, 30036, 35042, 37545, 40048, 50060, 52563, 60072, 70084, 75090, 80096, 87605, 100120, 105126, 120144, 140168, 150180, 160192, 175210, 200240, 210252, 240288, 262815, 280336, 300360, 320384, 350420, 400480, 420504, 480576, 525630, 560672, 600720, 640768, 700840, 800960, 841008, 961152, 1051260, 1121344, 1201440, 1401680, 1601920, 1682016, 1922304, 2102520, 2242688, 2402880, 2803360, 3203840, 3364032, 4205040, 4485376, 4805760, 5606720, 6728064, 8410080, 9611520, 11213440, 13456128, 16820160, 22426880, 33640320, 67280640]

約数ペア:

[(1, 67280640), (2, 33640320), (3, 22426880), (4, 16820160), (5, 13456128), (6, 11213440), (7, 9611520), (8, 8410080), (10, 6728064), (12, 5606720), (14, 4805760), (15, 4485376), (16, 4205040), (20, 3364032), (21, 3203840), (24, 2803360), (28, 2402880), (30, 2242688), (32, 2102520), (35, 1922304), (40, 1682016), (42, 1601920), (48, 1401680), (56, 1201440), (60, 1121344), (64, 1051260), (70, 961152), (80, 841008), (84, 800960), (96, 700840), (105, 640768), (112, 600720), (120, 560672), (128, 525630), (140, 480576), (160, 420504), (168, 400480), (192, 350420), (210, 320384), (224, 300360), (240, 280336), (256, 262815), (280, 240288), (320, 210252), (336, 200240), (384, 175210), (420, 160192), (448, 150180), (480, 140168), (560, 120144), (640, 105126), (672, 100120), (768, 87605), (840, 80096), (896, 75090), (960, 70084), (1120, 60072), (1280, 52563), (1344, 50060), (1680, 40048), (1792, 37545), (1920, 35042), (2240, 30036), (2503, 26880), (2688, 25030), (3360, 20024), (3840, 17521), (4480, 15018), (5006, 13440), (5376, 12515), (6720, 10012), (7509, 8960)]