728407815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 1248141312

約数和(自身を除く): 519733497

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 131, 213, 227, 345, 355, 393, 655, 681, 1065, 1135, 1633, 1965, 3013, 3405, 4899, 5221, 8165, 9039, 9301, 15065, 15663, 16117, 24495, 26105, 27903, 29737, 45195, 46505, 48351, 78315, 80585, 89211, 139515, 148685, 213923, 241755, 370691, 446055, 641769, 683951, 1069615, 1112073, 1853455, 2051853, 2111327, 3208845, 3419755, 5560365, 6333981, 10259265, 10556635, 31669905, 48560521, 145681563, 242802605, 728407815]

約数ペア:

[(1, 728407815), (3, 242802605), (5, 145681563), (15, 48560521), (23, 31669905), (69, 10556635), (71, 10259265), (115, 6333981), (131, 5560365), (213, 3419755), (227, 3208845), (345, 2111327), (355, 2051853), (393, 1853455), (655, 1112073), (681, 1069615), (1065, 683951), (1135, 641769), (1633, 446055), (1965, 370691), (3013, 241755), (3405, 213923), (4899, 148685), (5221, 139515), (8165, 89211), (9039, 80585), (9301, 78315), (15065, 48351), (15663, 46505), (16117, 45195), (24495, 29737), (26105, 27903)]