19881270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{220903}}^1$

素因数の和:220916

約数の個数: 24

約数和(自身を含む): 51691536

約数和(自身を除く): 31810266

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 220903, 441806, 662709, 1104515, 1325418, 1988127, 2209030, 3313545, 3976254, 6627090, 9940635, 19881270]

約数ペア:

[(1, 19881270), (2, 9940635), (3, 6627090), (5, 3976254), (6, 3313545), (9, 2209030), (10, 1988127), (15, 1325418), (18, 1104515), (30, 662709), (45, 441806), (90, 220903)]