80735080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 188717760

約数和(自身を除く): 107982680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 292, 344, 365, 430, 584, 643, 730, 860, 1286, 1460, 1720, 2572, 2920, 3139, 3215, 5144, 6278, 6430, 12556, 12860, 15695, 25112, 25720, 27649, 31390, 46939, 55298, 62780, 93878, 110596, 125560, 138245, 187756, 221192, 234695, 276490, 375512, 469390, 552980, 938780, 1105960, 1877560, 2018377, 4036754, 8073508, 10091885, 16147016, 20183770, 40367540, 80735080]

約数ペア:

[(1, 80735080), (2, 40367540), (4, 20183770), (5, 16147016), (8, 10091885), (10, 8073508), (20, 4036754), (40, 2018377), (43, 1877560), (73, 1105960), (86, 938780), (146, 552980), (172, 469390), (215, 375512), (292, 276490), (344, 234695), (365, 221192), (430, 187756), (584, 138245), (643, 125560), (730, 110596), (860, 93878), (1286, 62780), (1460, 55298), (1720, 46939), (2572, 31390), (2920, 27649), (3139, 25720), (3215, 25112), (5144, 15695), (6278, 12860), (6430, 12556)]