39921328

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{40903}}^1$

素因数の和:40972

約数の個数: 20

約数和(自身を含む): 78617488

約数和(自身を除く): 38696160

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 40903, 81806, 163612, 327224, 654448, 2495083, 4990166, 9980332, 19960664, 39921328]

約数ペア:

[(1, 39921328), (2, 19960664), (4, 9980332), (8, 4990166), (16, 2495083), (61, 654448), (122, 327224), (244, 163612), (488, 81806), (976, 40903)]