81697920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2542

約数の個数: 128

約数和(自身を含む): 275840640

約数和(自身を除く): 194142720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 816, 960, 1020, 1088, 1360, 1632, 1920, 2040, 2176, 2503, 2720, 3264, 4080, 5006, 5440, 6528, 7509, 8160, 10012, 10880, 12515, 15018, 16320, 20024, 25030, 30036, 32640, 37545, 40048, 42551, 50060, 60072, 75090, 80096, 85102, 100120, 120144, 127653, 150180, 160192, 170204, 200240, 212755, 240288, 255306, 300360, 320384, 340408, 400480, 425510, 480576, 510612, 600720, 638265, 680816, 800960, 851020, 961152, 1021224, 1201440, 1276530, 1361632, 1601920, 1702040, 2042448, 2402880, 2553060, 2723264, 3404080, 4084896, 4805760, 5106120, 5446528, 6808160, 8169792, 10212240, 13616320, 16339584, 20424480, 27232640, 40848960, 81697920]

約数ペア:

[(1, 81697920), (2, 40848960), (3, 27232640), (4, 20424480), (5, 16339584), (6, 13616320), (8, 10212240), (10, 8169792), (12, 6808160), (15, 5446528), (16, 5106120), (17, 4805760), (20, 4084896), (24, 3404080), (30, 2723264), (32, 2553060), (34, 2402880), (40, 2042448), (48, 1702040), (51, 1601920), (60, 1361632), (64, 1276530), (68, 1201440), (80, 1021224), (85, 961152), (96, 851020), (102, 800960), (120, 680816), (128, 638265), (136, 600720), (160, 510612), (170, 480576), (192, 425510), (204, 400480), (240, 340408), (255, 320384), (272, 300360), (320, 255306), (340, 240288), (384, 212755), (408, 200240), (480, 170204), (510, 160192), (544, 150180), (640, 127653), (680, 120144), (816, 100120), (960, 85102), (1020, 80096), (1088, 75090), (1360, 60072), (1632, 50060), (1920, 42551), (2040, 40048), (2176, 37545), (2503, 32640), (2720, 30036), (3264, 25030), (4080, 20024), (5006, 16320), (5440, 15018), (6528, 12515), (7509, 10880), (8160, 10012)]