77821480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1291}}^1$

素因数の和:1450

約数の個数: 64

約数和(自身を含む): 192559680

約数和(自身を除く): 114738200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 137, 220, 274, 440, 548, 685, 1096, 1291, 1370, 1507, 2582, 2740, 3014, 5164, 5480, 6028, 6455, 7535, 10328, 12056, 12910, 14201, 15070, 25820, 28402, 30140, 51640, 56804, 60280, 71005, 113608, 142010, 176867, 284020, 353734, 568040, 707468, 884335, 1414936, 1768670, 1945537, 3537340, 3891074, 7074680, 7782148, 9727685, 15564296, 19455370, 38910740, 77821480]

約数ペア:

[(1, 77821480), (2, 38910740), (4, 19455370), (5, 15564296), (8, 9727685), (10, 7782148), (11, 7074680), (20, 3891074), (22, 3537340), (40, 1945537), (44, 1768670), (55, 1414936), (88, 884335), (110, 707468), (137, 568040), (220, 353734), (274, 284020), (440, 176867), (548, 142010), (685, 113608), (1096, 71005), (1291, 60280), (1370, 56804), (1507, 51640), (2582, 30140), (2740, 28402), (3014, 25820), (5164, 15070), (5480, 14201), (6028, 12910), (6455, 12056), (7535, 10328)]