81261795

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 134003520

約数和(自身を除く): 52741725

約数列:

[1, 3, 5, 15, 41, 123, 205, 229, 577, 615, 687, 1145, 1731, 2885, 3435, 8655, 9389, 23657, 28167, 46945, 70971, 118285, 132133, 140835, 354855, 396399, 660665, 1981995, 5417453, 16252359, 27087265, 81261795]

約数ペア:

[(1, 81261795), (3, 27087265), (5, 16252359), (15, 5417453), (41, 1981995), (123, 660665), (205, 396399), (229, 354855), (577, 140835), (615, 132133), (687, 118285), (1145, 70971), (1731, 46945), (2885, 28167), (3435, 23657), (8655, 9389)]