317185280

素因数分解:

$2^8\times 5^1\times {\mathrm{383}}^1\times {\mathrm{647}}^1$

素因数の和:1051

約数の個数: 72

約数和(自身を含む): 762918912

約数和(自身を除く): 445733632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 383, 640, 647, 766, 1280, 1294, 1532, 1915, 2588, 3064, 3235, 3830, 5176, 6128, 6470, 7660, 10352, 12256, 12940, 15320, 20704, 24512, 25880, 30640, 41408, 49024, 51760, 61280, 82816, 98048, 103520, 122560, 165632, 207040, 245120, 247801, 414080, 490240, 495602, 828160, 991204, 1239005, 1982408, 2478010, 3964816, 4956020, 7929632, 9912040, 15859264, 19824080, 31718528, 39648160, 63437056, 79296320, 158592640, 317185280]

約数ペア:

[(1, 317185280), (2, 158592640), (4, 79296320), (5, 63437056), (8, 39648160), (10, 31718528), (16, 19824080), (20, 15859264), (32, 9912040), (40, 7929632), (64, 4956020), (80, 3964816), (128, 2478010), (160, 1982408), (256, 1239005), (320, 991204), (383, 828160), (640, 495602), (647, 490240), (766, 414080), (1280, 247801), (1294, 245120), (1532, 207040), (1915, 165632), (2588, 122560), (3064, 103520), (3235, 98048), (3830, 82816), (5176, 61280), (6128, 51760), (6470, 49024), (7660, 41408), (10352, 30640), (12256, 25880), (12940, 24512), (15320, 20704)]