81821264

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4903}}^1$

素因数の和:5067

約数の個数: 40

約数和(自身を含む): 182428800

約数和(自身を除く): 100607536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 2086, 2384, 4172, 4903, 8344, 9806, 16688, 19612, 34321, 39224, 68642, 78448, 137284, 274568, 549136, 730547, 1461094, 2922188, 5113829, 5844376, 10227658, 11688752, 20455316, 40910632, 81821264]

約数ペア:

[(1, 81821264), (2, 40910632), (4, 20455316), (7, 11688752), (8, 10227658), (14, 5844376), (16, 5113829), (28, 2922188), (56, 1461094), (112, 730547), (149, 549136), (298, 274568), (596, 137284), (1043, 78448), (1192, 68642), (2086, 39224), (2384, 34321), (4172, 19612), (4903, 16688), (8344, 9806)]