415376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2018

約数の個数: 20

約数和(自身を含む): 867132

約数和(自身を除く): 451756

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1997, 3994, 7988, 15976, 25961, 31952, 51922, 103844, 207688, 415376]

約数ペア:

[(1, 415376), (2, 207688), (4, 103844), (8, 51922), (13, 31952), (16, 25961), (26, 15976), (52, 7988), (104, 3994), (208, 1997)]