989231618

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{367}}^1\times {\mathrm{797}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 1585785600

約数和(自身を除く): 596553982

約数列:

[1, 2, 19, 38, 89, 178, 367, 734, 797, 1594, 1691, 3382, 6973, 13946, 15143, 30286, 32663, 65326, 70933, 141866, 292499, 584998, 620597, 1241194, 1347727, 2695454, 5557481, 11114962, 26032411, 52064822, 494615809, 989231618]

約数ペア:

[(1, 989231618), (2, 494615809), (19, 52064822), (38, 26032411), (89, 11114962), (178, 5557481), (367, 2695454), (734, 1347727), (797, 1241194), (1594, 620597), (1691, 584998), (3382, 292499), (6973, 141866), (13946, 70933), (15143, 65326), (30286, 32663)]