20474860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146249}}^1$

素因数の和:146265

約数の個数: 24

約数和(自身を含む): 49140000

約数和(自身を除く): 28665140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146249, 292498, 584996, 731245, 1023743, 1462490, 2047486, 2924980, 4094972, 5118715, 10237430, 20474860]

約数ペア:

[(1, 20474860), (2, 10237430), (4, 5118715), (5, 4094972), (7, 2924980), (10, 2047486), (14, 1462490), (20, 1023743), (28, 731245), (35, 584996), (70, 292498), (140, 146249)]