638919828

素因数分解:

$2^2\times 3^2\times {\mathrm{1747}}^1\times {\mathrm{10159}}^1$

素因数の和:11916

約数の個数: 36

約数和(自身を含む): 1616130880

約数和(自身を除く): 977211052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1747, 3494, 5241, 6988, 10159, 10482, 15723, 20318, 20964, 30477, 31446, 40636, 60954, 62892, 91431, 121908, 182862, 365724, 17747773, 35495546, 53243319, 70991092, 106486638, 159729957, 212973276, 319459914, 638919828]

約数ペア:

[(1, 638919828), (2, 319459914), (3, 212973276), (4, 159729957), (6, 106486638), (9, 70991092), (12, 53243319), (18, 35495546), (36, 17747773), (1747, 365724), (3494, 182862), (5241, 121908), (6988, 91431), (10159, 62892), (10482, 60954), (15723, 40636), (20318, 31446), (20964, 30477)]