9750020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{9949}}^1$

素因数の和:9972

約数の個数: 36

約数和(自身を含む): 23820300

約数和(自身を除く): 14070280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 9949, 19898, 39796, 49745, 69643, 99490, 139286, 198980, 278572, 348215, 487501, 696430, 975002, 1392860, 1950004, 2437505, 4875010, 9750020]

約数ペア:

[(1, 9750020), (2, 4875010), (4, 2437505), (5, 1950004), (7, 1392860), (10, 975002), (14, 696430), (20, 487501), (28, 348215), (35, 278572), (49, 198980), (70, 139286), (98, 99490), (140, 69643), (196, 49745), (245, 39796), (490, 19898), (980, 9949)]