256561486

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{1307}}^1\times {\mathrm{1609}}^1$

素因数の和:2979

約数の個数: 16

約数和(自身を含む): 391693680

約数和(自身を除く): 135132194

約数列:

[1, 2, 61, 122, 1307, 1609, 2614, 3218, 79727, 98149, 159454, 196298, 2102963, 4205926, 128280743, 256561486]

約数ペア:

[(1, 256561486), (2, 128280743), (61, 4205926), (122, 2102963), (1307, 196298), (1609, 159454), (2614, 98149), (3218, 79727)]