81055390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20113}}^1$

素因数の和:20164

約数の個数: 32

約数和(自身を含む): 162199296

約数和(自身を除く): 81143906

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20113, 40226, 100565, 201130, 261469, 522938, 623503, 1247006, 1307345, 2614690, 3117515, 6235030, 8105539, 16211078, 40527695, 81055390]

約数ペア:

[(1, 81055390), (2, 40527695), (5, 16211078), (10, 8105539), (13, 6235030), (26, 3117515), (31, 2614690), (62, 1307345), (65, 1247006), (130, 623503), (155, 522938), (310, 261469), (403, 201130), (806, 100565), (2015, 40226), (4030, 20113)]