820408285

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1\times {\mathrm{4957}}^1$

素因数の和:5460

約数の個数: 16

約数和(自身を含む): 999532800

約数和(自身を除く): 179124515

約数列:

[1, 5, 79, 395, 419, 2095, 4957, 24785, 33101, 165505, 391603, 1958015, 2076983, 10384915, 164081657, 820408285]

約数ペア:

[(1, 820408285), (5, 164081657), (79, 10384915), (395, 2076983), (419, 1958015), (2095, 391603), (4957, 165505), (24785, 33101)]