128544320

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3163}}^1$

素因数の和:3307

約数の個数: 56

約数和(自身を含む): 308603904

約数和(自身を除く): 180059584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 3163, 4064, 5080, 6326, 8128, 10160, 12652, 15815, 20320, 25304, 31630, 40640, 50608, 63260, 101216, 126520, 202432, 253040, 401701, 506080, 803402, 1012160, 1606804, 2008505, 3213608, 4017010, 6427216, 8034020, 12854432, 16068040, 25708864, 32136080, 64272160, 128544320]

約数ペア:

[(1, 128544320), (2, 64272160), (4, 32136080), (5, 25708864), (8, 16068040), (10, 12854432), (16, 8034020), (20, 6427216), (32, 4017010), (40, 3213608), (64, 2008505), (80, 1606804), (127, 1012160), (160, 803402), (254, 506080), (320, 401701), (508, 253040), (635, 202432), (1016, 126520), (1270, 101216), (2032, 63260), (2540, 50608), (3163, 40640), (4064, 31630), (5080, 25304), (6326, 20320), (8128, 15815), (10160, 12652)]