287991280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1$

素因数の和:874

約数の個数: 80

約数和(自身を含む): 702437184

約数和(自身を除く): 414445904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 281, 368, 460, 557, 562, 920, 1114, 1124, 1405, 1840, 2228, 2248, 2785, 2810, 4456, 4496, 5570, 5620, 6463, 8912, 11140, 11240, 12811, 12926, 22280, 22480, 25622, 25852, 32315, 44560, 51244, 51704, 64055, 64630, 102488, 103408, 128110, 129260, 156517, 204976, 256220, 258520, 313034, 512440, 517040, 626068, 782585, 1024880, 1252136, 1565170, 2504272, 3130340, 3599891, 6260680, 7199782, 12521360, 14399564, 17999455, 28799128, 35998910, 57598256, 71997820, 143995640, 287991280]

約数ペア:

[(1, 287991280), (2, 143995640), (4, 71997820), (5, 57598256), (8, 35998910), (10, 28799128), (16, 17999455), (20, 14399564), (23, 12521360), (40, 7199782), (46, 6260680), (80, 3599891), (92, 3130340), (115, 2504272), (184, 1565170), (230, 1252136), (281, 1024880), (368, 782585), (460, 626068), (557, 517040), (562, 512440), (920, 313034), (1114, 258520), (1124, 256220), (1405, 204976), (1840, 156517), (2228, 129260), (2248, 128110), (2785, 103408), (2810, 102488), (4456, 64630), (4496, 64055), (5570, 51704), (5620, 51244), (6463, 44560), (8912, 32315), (11140, 25852), (11240, 25622), (12811, 22480), (12926, 22280)]