9783980

素因数分解:

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

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 20638800

約数和(自身を除く): 10854820

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 1949, 2510, 3898, 5020, 7796, 9745, 19490, 38980, 489199, 978398, 1956796, 2445995, 4891990, 9783980]

約数ペア:

[(1, 9783980), (2, 4891990), (4, 2445995), (5, 1956796), (10, 978398), (20, 489199), (251, 38980), (502, 19490), (1004, 9745), (1255, 7796), (1949, 5020), (2510, 3898)]