81858916

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{683}}^1$

素因数の和:808

約数の個数: 36

約数和(自身を含む): 153235152

約数和(自身を除く): 71376236

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 361, 683, 722, 1366, 1444, 1577, 2732, 3154, 6308, 12977, 25954, 29963, 51908, 56689, 59926, 113378, 119852, 226756, 246563, 493126, 986252, 1077091, 2154182, 4308364, 20464729, 40929458, 81858916]

約数ペア:

[(1, 81858916), (2, 40929458), (4, 20464729), (19, 4308364), (38, 2154182), (76, 1077091), (83, 986252), (166, 493126), (332, 246563), (361, 226756), (683, 119852), (722, 113378), (1366, 59926), (1444, 56689), (1577, 51908), (2732, 29963), (3154, 25954), (6308, 12977)]