78505160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47869}}^1$

素因数の和:47921

約数の個数: 32

約数和(自身を含む): 180948600

約数和(自身を除く): 102443440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 47869, 95738, 191476, 239345, 382952, 478690, 957380, 1914760, 1962629, 3925258, 7850516, 9813145, 15701032, 19626290, 39252580, 78505160]

約数ペア:

[(1, 78505160), (2, 39252580), (4, 19626290), (5, 15701032), (8, 9813145), (10, 7850516), (20, 3925258), (40, 1962629), (41, 1914760), (82, 957380), (164, 478690), (205, 382952), (328, 239345), (410, 191476), (820, 95738), (1640, 47869)]