78915840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{20551}}^1$

素因数の和:20575

約数の個数: 72

約数和(自身を含む): 252049728

約数和(自身を除く): 173133888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 20551, 41102, 61653, 82204, 102755, 123306, 164408, 205510, 246612, 308265, 328816, 411020, 493224, 616530, 657632, 822040, 986448, 1233060, 1315264, 1644080, 1972896, 2466120, 2630528, 3288160, 3945792, 4932240, 5261056, 6576320, 7891584, 9864480, 13152640, 15783168, 19728960, 26305280, 39457920, 78915840]

約数ペア:

[(1, 78915840), (2, 39457920), (3, 26305280), (4, 19728960), (5, 15783168), (6, 13152640), (8, 9864480), (10, 7891584), (12, 6576320), (15, 5261056), (16, 4932240), (20, 3945792), (24, 3288160), (30, 2630528), (32, 2466120), (40, 1972896), (48, 1644080), (60, 1315264), (64, 1233060), (80, 986448), (96, 822040), (120, 657632), (128, 616530), (160, 493224), (192, 411020), (240, 328816), (256, 308265), (320, 246612), (384, 205510), (480, 164408), (640, 123306), (768, 102755), (960, 82204), (1280, 61653), (1920, 41102), (3840, 20551)]