20500970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10099}}^1$

素因数の和:10142

約数の個数: 32

約数和(自身を含む): 43632000

約数和(自身を除く): 23131030

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10099, 20198, 50495, 70693, 100990, 141386, 292871, 353465, 585742, 706930, 1464355, 2050097, 2928710, 4100194, 10250485, 20500970]

約数ペア:

[(1, 20500970), (2, 10250485), (5, 4100194), (7, 2928710), (10, 2050097), (14, 1464355), (29, 706930), (35, 585742), (58, 353465), (70, 292871), (145, 141386), (203, 100990), (290, 70693), (406, 50495), (1015, 20198), (2030, 10099)]