645229878

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{2500891}}^1$

素因数の和:2500939

約数の個数: 16

約数和(自身を含む): 1320470976

約数和(自身を除く): 675241098

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 2500891, 5001782, 7502673, 15005346, 107538313, 215076626, 322614939, 645229878]

約数ペア:

[(1, 645229878), (2, 322614939), (3, 215076626), (6, 107538313), (43, 15005346), (86, 7502673), (129, 5001782), (258, 2500891)]