71964815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1301}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 99743616

約数和(自身を除く): 27778801

約数列:

[1, 5, 13, 23, 37, 65, 115, 185, 299, 481, 851, 1301, 1495, 2405, 4255, 6505, 11063, 16913, 29923, 48137, 55315, 84565, 149615, 240685, 388999, 625781, 1107151, 1944995, 3128905, 5535755, 14392963, 71964815]

約数ペア:

[(1, 71964815), (5, 14392963), (13, 5535755), (23, 3128905), (37, 1944995), (65, 1107151), (115, 625781), (185, 388999), (299, 240685), (481, 149615), (851, 84565), (1301, 55315), (1495, 48137), (2405, 29923), (4255, 16913), (6505, 11063)]