31783120

素因数分解:

$2^4\times 5^1\times {\mathrm{397289}}^1$

素因数の和:397302

約数の個数: 20

約数和(自身を含む): 73895940

約数和(自身を除く): 42112820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397289, 794578, 1589156, 1986445, 3178312, 3972890, 6356624, 7945780, 15891560, 31783120]

約数ペア:

[(1, 31783120), (2, 15891560), (4, 7945780), (5, 6356624), (8, 3972890), (10, 3178312), (16, 1986445), (20, 1589156), (40, 794578), (80, 397289)]