20290064

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20789}}^1$

素因数の和:20858

約数の個数: 20

約数和(自身を含む): 39958380

約数和(自身を除く): 19668316

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20789, 41578, 83156, 166312, 332624, 1268129, 2536258, 5072516, 10145032, 20290064]

約数ペア:

[(1, 20290064), (2, 10145032), (4, 5072516), (8, 2536258), (16, 1268129), (61, 332624), (122, 166312), (244, 83156), (488, 41578), (976, 20789)]