80804480

素因数分解:

$2^7\times 5^1\times {\mathrm{126257}}^1$

素因数の和:126276

約数の個数: 32

約数和(自身を含む): 193174740

約数和(自身を除く): 112370260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126257, 252514, 505028, 631285, 1010056, 1262570, 2020112, 2525140, 4040224, 5050280, 8080448, 10100560, 16160896, 20201120, 40402240, 80804480]

約数ペア:

[(1, 80804480), (2, 40402240), (4, 20201120), (5, 16160896), (8, 10100560), (10, 8080448), (16, 5050280), (20, 4040224), (32, 2525140), (40, 2020112), (64, 1262570), (80, 1010056), (128, 631285), (160, 505028), (320, 252514), (640, 126257)]