81178536257

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1429}}^1\times {\mathrm{3137}}^1$

素因数の和:4785

約数の個数: 32

約数和(自身を含む): 100516416000

約数和(自身を除く): 19337879743

約数列:

[1, 7, 13, 91, 199, 1393, 1429, 2587, 3137, 10003, 18109, 18577, 21959, 40781, 130039, 284371, 285467, 624263, 1990597, 3696823, 4369841, 4482773, 8115419, 25877761, 31379411, 56807933, 58276049, 407932343, 892071827, 6244502789, 11596933751, 81178536257]

約数ペア:

[(1, 81178536257), (7, 11596933751), (13, 6244502789), (91, 892071827), (199, 407932343), (1393, 58276049), (1429, 56807933), (2587, 31379411), (3137, 25877761), (10003, 8115419), (18109, 4482773), (18577, 4369841), (21959, 3696823), (40781, 1990597), (130039, 624263), (284371, 285467)]