388558768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{8377}}^1$

素因数の和:8621

約数の個数: 40

約数和(自身を含む): 814475648

約数和(自身を除く): 425916880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 892, 1784, 2899, 3568, 5798, 8377, 11596, 16754, 23192, 33508, 46384, 67016, 108901, 134032, 217802, 435604, 871208, 1742416, 1868071, 3736142, 7472284, 14944568, 24284923, 29889136, 48569846, 97139692, 194279384, 388558768]

約数ペア:

[(1, 388558768), (2, 194279384), (4, 97139692), (8, 48569846), (13, 29889136), (16, 24284923), (26, 14944568), (52, 7472284), (104, 3736142), (208, 1868071), (223, 1742416), (446, 871208), (892, 435604), (1784, 217802), (2899, 134032), (3568, 108901), (5798, 67016), (8377, 46384), (11596, 33508), (16754, 23192)]