393991208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{887}}^1\times {\mathrm{4271}}^1$

素因数の和:5177

約数の個数: 32

約数和(自身を含む): 796642560

約数和(自身を除く): 402651352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 887, 1774, 3548, 4271, 7096, 8542, 11531, 17084, 23062, 34168, 46124, 55523, 92248, 111046, 222092, 444184, 3788377, 7576754, 15153508, 30307016, 49248901, 98497802, 196995604, 393991208]

約数ペア:

[(1, 393991208), (2, 196995604), (4, 98497802), (8, 49248901), (13, 30307016), (26, 15153508), (52, 7576754), (104, 3788377), (887, 444184), (1774, 222092), (3548, 111046), (4271, 92248), (7096, 55523), (8542, 46124), (11531, 34168), (17084, 23062)]