77792720

素因数分解:

$2^4\times 5^1\times {\mathrm{972409}}^1$

素因数の和:972422

約数の個数: 20

約数和(自身を含む): 180868260

約数和(自身を除く): 103075540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 972409, 1944818, 3889636, 4862045, 7779272, 9724090, 15558544, 19448180, 38896360, 77792720]

約数ペア:

[(1, 77792720), (2, 38896360), (4, 19448180), (5, 15558544), (8, 9724090), (10, 7779272), (16, 4862045), (20, 3889636), (40, 1944818), (80, 972409)]