81203188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 164606400

約数和(自身を除く): 83403212

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 137, 209, 274, 418, 548, 709, 836, 1418, 1507, 2603, 2836, 3014, 5206, 6028, 7799, 10412, 13471, 15598, 26942, 28633, 31196, 53884, 57266, 97133, 114532, 148181, 194266, 296362, 388532, 592724, 1068463, 1845527, 2136926, 3691054, 4273852, 7382108, 20300797, 40601594, 81203188]

約数ペア:

[(1, 81203188), (2, 40601594), (4, 20300797), (11, 7382108), (19, 4273852), (22, 3691054), (38, 2136926), (44, 1845527), (76, 1068463), (137, 592724), (209, 388532), (274, 296362), (418, 194266), (548, 148181), (709, 114532), (836, 97133), (1418, 57266), (1507, 53884), (2603, 31196), (2836, 28633), (3014, 26942), (5206, 15598), (6028, 13471), (7799, 10412)]