638678256

素因数分解:

$2^4\times 3^1\times {\mathrm{13305797}}^1$

素因数の和:13305808

約数の個数: 20

約数和(自身を含む): 1649918952

約数和(自身を除く): 1011240696

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13305797, 26611594, 39917391, 53223188, 79834782, 106446376, 159669564, 212892752, 319339128, 638678256]

約数ペア:

[(1, 638678256), (2, 319339128), (3, 212892752), (4, 159669564), (6, 106446376), (8, 79834782), (12, 53223188), (16, 39917391), (24, 26611594), (48, 13305797)]