77968996

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2216

約数の個数: 36

約数和(自身を含む): 159600000

約数和(自身を除く): 81631004

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 796, 1393, 1999, 2786, 3998, 5572, 7996, 9751, 13993, 19502, 27986, 39004, 55972, 97951, 195902, 391804, 397801, 795602, 1591204, 2784607, 5569214, 11138428, 19492249, 38984498, 77968996]

約数ペア:

[(1, 77968996), (2, 38984498), (4, 19492249), (7, 11138428), (14, 5569214), (28, 2784607), (49, 1591204), (98, 795602), (196, 397801), (199, 391804), (398, 195902), (796, 97951), (1393, 55972), (1999, 39004), (2786, 27986), (3998, 19502), (5572, 13993), (7996, 9751)]