199447780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{34747}}^1$

素因数の和:34804

約数の個数: 48

約数和(自身を含む): 490363776

約数和(自身を除く): 290915996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 34747, 69494, 138988, 173735, 243229, 347470, 486458, 694940, 972916, 1216145, 1424627, 2432290, 2849254, 4864580, 5698508, 7123135, 9972389, 14246270, 19944778, 28492540, 39889556, 49861945, 99723890, 199447780]

約数ペア:

[(1, 199447780), (2, 99723890), (4, 49861945), (5, 39889556), (7, 28492540), (10, 19944778), (14, 14246270), (20, 9972389), (28, 7123135), (35, 5698508), (41, 4864580), (70, 2849254), (82, 2432290), (140, 1424627), (164, 1216145), (205, 972916), (287, 694940), (410, 486458), (574, 347470), (820, 243229), (1148, 173735), (1435, 138988), (2870, 69494), (5740, 34747)]