81020145

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{3217}}^1$

素因数の和:3321

約数の個数: 32

約数和(自身を含む): 137164032

約数和(自身を除く): 56143887

約数列:

[1, 3, 5, 15, 23, 69, 73, 115, 219, 345, 365, 1095, 1679, 3217, 5037, 8395, 9651, 16085, 25185, 48255, 73991, 221973, 234841, 369955, 704523, 1109865, 1174205, 3522615, 5401343, 16204029, 27006715, 81020145]

約数ペア:

[(1, 81020145), (3, 27006715), (5, 16204029), (15, 5401343), (23, 3522615), (69, 1174205), (73, 1109865), (115, 704523), (219, 369955), (345, 234841), (365, 221973), (1095, 73991), (1679, 48255), (3217, 25185), (5037, 16085), (8395, 9651)]