81057857165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{72173}}^1$

素因数の和:72449

約数の個数: 32

約数和(自身を含む): 104980258656

約数和(自身を除く): 23922401491

約数列:

[1, 5, 17, 73, 85, 181, 365, 905, 1241, 3077, 6205, 13213, 15385, 66065, 72173, 224621, 360865, 1123105, 1226941, 5268629, 6134705, 13063313, 26343145, 65316565, 89566693, 222076321, 447833465, 953621849, 1110381605, 4768109245, 16211571433, 81057857165]

約数ペア:

[(1, 81057857165), (5, 16211571433), (17, 4768109245), (73, 1110381605), (85, 953621849), (181, 447833465), (365, 222076321), (905, 89566693), (1241, 65316565), (3077, 26343145), (6205, 13063313), (13213, 6134705), (15385, 5268629), (66065, 1226941), (72173, 1123105), (224621, 360865)]