81139804

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{677}}^1$

素因数の和:802

約数の個数: 36

約数和(自身を含む): 151890984

約数和(自身を除く): 70751180

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 361, 677, 722, 1354, 1444, 1577, 2708, 3154, 6308, 12863, 25726, 29963, 51452, 56191, 59926, 112382, 119852, 224764, 244397, 488794, 977588, 1067629, 2135258, 4270516, 20284951, 40569902, 81139804]

約数ペア:

[(1, 81139804), (2, 40569902), (4, 20284951), (19, 4270516), (38, 2135258), (76, 1067629), (83, 977588), (166, 488794), (332, 244397), (361, 224764), (677, 119852), (722, 112382), (1354, 59926), (1444, 56191), (1577, 51452), (2708, 29963), (3154, 25726), (6308, 12863)]