66544420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{40087}}^1$

素因数の和:40179

約数の個数: 24

約数和(自身を含む): 141430464

約数和(自身を除く): 74886044

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 40087, 80174, 160348, 200435, 400870, 801740, 3327221, 6654442, 13308884, 16636105, 33272210, 66544420]

約数ペア:

[(1, 66544420), (2, 33272210), (4, 16636105), (5, 13308884), (10, 6654442), (20, 3327221), (83, 801740), (166, 400870), (332, 200435), (415, 160348), (830, 80174), (1660, 40087)]