77774480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138883}}^1$

素因数の和:138903

約数の個数: 40

約数和(自身を含む): 206659392

約数和(自身を除く): 128884912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138883, 277766, 555532, 694415, 972181, 1111064, 1388830, 1944362, 2222128, 2777660, 3888724, 4860905, 5555320, 7777448, 9721810, 11110640, 15554896, 19443620, 38887240, 77774480]

約数ペア:

[(1, 77774480), (2, 38887240), (4, 19443620), (5, 15554896), (7, 11110640), (8, 9721810), (10, 7777448), (14, 5555320), (16, 4860905), (20, 3888724), (28, 2777660), (35, 2222128), (40, 1944362), (56, 1388830), (70, 1111064), (80, 972181), (112, 694415), (140, 555532), (280, 277766), (560, 138883)]