123887780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199819}}^1$

素因数の和:199859

約数の個数: 24

約数和(自身を含む): 268558080

約数和(自身を除く): 144670300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 199819, 399638, 799276, 999095, 1998190, 3996380, 6194389, 12388778, 24777556, 30971945, 61943890, 123887780]

約数ペア:

[(1, 123887780), (2, 61943890), (4, 30971945), (5, 24777556), (10, 12388778), (20, 6194389), (31, 3996380), (62, 1998190), (124, 999095), (155, 799276), (310, 399638), (620, 199819)]