79684540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{306479}}^1$

素因数の和:306501

約数の個数: 24

約数和(自身を含む): 180210240

約数和(自身を除く): 100525700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 306479, 612958, 1225916, 1532395, 3064790, 3984227, 6129580, 7968454, 15936908, 19921135, 39842270, 79684540]

約数ペア:

[(1, 79684540), (2, 39842270), (4, 19921135), (5, 15936908), (10, 7968454), (13, 6129580), (20, 3984227), (26, 3064790), (52, 1532395), (65, 1225916), (130, 612958), (260, 306479)]