81151730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 165998592

約数和(自身を除く): 84846862

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 127, 157, 185, 254, 314, 370, 407, 635, 785, 814, 1270, 1397, 1570, 1727, 2035, 2794, 3454, 4070, 4699, 5809, 6985, 8635, 9398, 11618, 13970, 17270, 19939, 23495, 29045, 39878, 46990, 51689, 58090, 63899, 99695, 103378, 127798, 199390, 219329, 258445, 319495, 438658, 516890, 638990, 737743, 1096645, 1475486, 2193290, 3688715, 7377430, 8115173, 16230346, 40575865, 81151730]

約数ペア:

[(1, 81151730), (2, 40575865), (5, 16230346), (10, 8115173), (11, 7377430), (22, 3688715), (37, 2193290), (55, 1475486), (74, 1096645), (110, 737743), (127, 638990), (157, 516890), (185, 438658), (254, 319495), (314, 258445), (370, 219329), (407, 199390), (635, 127798), (785, 103378), (814, 99695), (1270, 63899), (1397, 58090), (1570, 51689), (1727, 46990), (2035, 39878), (2794, 29045), (3454, 23495), (4070, 19939), (4699, 17270), (5809, 13970), (6985, 11618), (8635, 9398)]