20806767085

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{461}}^1\times {\mathrm{1723}}^1$

素因数の和:2246

約数の個数: 48

約数和(自身を含む): 27985402368

約数和(自身を除く): 7178635283

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 461, 845, 1723, 2015, 2305, 5239, 5993, 8615, 14291, 22399, 26195, 29965, 53413, 71455, 77909, 111995, 185783, 267065, 291187, 389545, 694369, 794303, 928915, 1455935, 2415179, 3471845, 3971515, 9026797, 10325939, 12075895, 24623393, 45133985, 51629695, 123116965, 134237207, 320104109, 671186035, 1600520545, 4161353417, 20806767085]

約数ペア:

[(1, 20806767085), (5, 4161353417), (13, 1600520545), (31, 671186035), (65, 320104109), (155, 134237207), (169, 123116965), (403, 51629695), (461, 45133985), (845, 24623393), (1723, 12075895), (2015, 10325939), (2305, 9026797), (5239, 3971515), (5993, 3471845), (8615, 2415179), (14291, 1455935), (22399, 928915), (26195, 794303), (29965, 694369), (53413, 389545), (71455, 291187), (77909, 267065), (111995, 185783)]