78546020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{80149}}^1$

素因数の和:80172

約数の個数: 36

約数和(自身を含む): 191879100

約数和(自身を除く): 113333080

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 80149, 160298, 320596, 400745, 561043, 801490, 1122086, 1602980, 2244172, 2805215, 3927301, 5610430, 7854602, 11220860, 15709204, 19636505, 39273010, 78546020]

約数ペア:

[(1, 78546020), (2, 39273010), (4, 19636505), (5, 15709204), (7, 11220860), (10, 7854602), (14, 5610430), (20, 3927301), (28, 2805215), (35, 2244172), (49, 1602980), (70, 1122086), (98, 801490), (140, 561043), (196, 400745), (245, 320596), (490, 160298), (980, 80149)]