81429855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1021}}^1$

素因数の和:1451

約数の個数: 32

約数和(自身を含む): 140790720

約数和(自身を除く): 59360865

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 409, 1021, 1227, 2045, 3063, 5105, 5317, 6135, 13273, 15315, 15951, 26585, 39819, 66365, 79755, 199095, 417589, 1252767, 2087945, 5428657, 6263835, 16285971, 27143285, 81429855]

約数ペア:

[(1, 81429855), (3, 27143285), (5, 16285971), (13, 6263835), (15, 5428657), (39, 2087945), (65, 1252767), (195, 417589), (409, 199095), (1021, 79755), (1227, 66365), (2045, 39819), (3063, 26585), (5105, 15951), (5317, 15315), (6135, 13273)]