644807788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{52051}}^1$

素因数の和:52237

約数の個数: 24

約数和(自身を含む): 1195113920

約数和(自身を除く): 550306132

約数列:

[1, 2, 4, 19, 38, 76, 163, 326, 652, 3097, 6194, 12388, 52051, 104102, 208204, 988969, 1977938, 3955876, 8484313, 16968626, 33937252, 161201947, 322403894, 644807788]

約数ペア:

[(1, 644807788), (2, 322403894), (4, 161201947), (19, 33937252), (38, 16968626), (76, 8484313), (163, 3955876), (326, 1977938), (652, 988969), (3097, 208204), (6194, 104102), (12388, 52051)]