19567960

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1949}}^1$

素因数の和:2211

約数の個数: 32

約数和(自身を含む): 44226000

約数和(自身を除く): 24658040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1949, 2008, 2510, 3898, 5020, 7796, 9745, 10040, 15592, 19490, 38980, 77960, 489199, 978398, 1956796, 2445995, 3913592, 4891990, 9783980, 19567960]

約数ペア:

[(1, 19567960), (2, 9783980), (4, 4891990), (5, 3913592), (8, 2445995), (10, 1956796), (20, 978398), (40, 489199), (251, 77960), (502, 38980), (1004, 19490), (1255, 15592), (1949, 10040), (2008, 9745), (2510, 7796), (3898, 5020)]