251661440

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1451}}^1$

素因数の和:1741

約数の個数: 64

約数和(自身を含む): 604264320

約数和(自身を除く): 352602880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 542, 640, 1084, 1355, 1451, 2168, 2710, 2902, 4336, 5420, 5804, 7255, 8672, 10840, 11608, 14510, 17344, 21680, 23216, 29020, 34688, 43360, 46432, 58040, 86720, 92864, 116080, 173440, 185728, 232160, 393221, 464320, 786442, 928640, 1572884, 1966105, 3145768, 3932210, 6291536, 7864420, 12583072, 15728840, 25166144, 31457680, 50332288, 62915360, 125830720, 251661440]

約数ペア:

[(1, 251661440), (2, 125830720), (4, 62915360), (5, 50332288), (8, 31457680), (10, 25166144), (16, 15728840), (20, 12583072), (32, 7864420), (40, 6291536), (64, 3932210), (80, 3145768), (128, 1966105), (160, 1572884), (271, 928640), (320, 786442), (542, 464320), (640, 393221), (1084, 232160), (1355, 185728), (1451, 173440), (2168, 116080), (2710, 92864), (2902, 86720), (4336, 58040), (5420, 46432), (5804, 43360), (7255, 34688), (8672, 29020), (10840, 23216), (11608, 21680), (14510, 17344)]