1388790728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{13353757}}^1$

素因数の和:13353776

約数の個数: 16

約数和(自身を含む): 2804289180

約数和(自身を除く): 1415498452

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 13353757, 26707514, 53415028, 106830056, 173598841, 347197682, 694395364, 1388790728]

約数ペア:

[(1, 1388790728), (2, 694395364), (4, 347197682), (8, 173598841), (13, 106830056), (26, 53415028), (52, 26707514), (104, 13353757)]