20497190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 43707600

約数和(自身を除く): 23210410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 98, 118, 245, 295, 413, 490, 590, 709, 826, 1418, 2065, 2891, 3545, 4130, 4963, 5782, 7090, 9926, 14455, 24815, 28910, 34741, 41831, 49630, 69482, 83662, 173705, 209155, 292817, 347410, 418310, 585634, 1464085, 2049719, 2928170, 4099438, 10248595, 20497190]

約数ペア:

[(1, 20497190), (2, 10248595), (5, 4099438), (7, 2928170), (10, 2049719), (14, 1464085), (35, 585634), (49, 418310), (59, 347410), (70, 292817), (98, 209155), (118, 173705), (245, 83662), (295, 69482), (413, 49630), (490, 41831), (590, 34741), (709, 28910), (826, 24815), (1418, 14455), (2065, 9926), (2891, 7090), (3545, 5782), (4130, 4963)]