81474010

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1\times {\mathrm{439}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 149719680

約数和(自身を除く): 68245670

約数列:

[1, 2, 5, 10, 67, 134, 277, 335, 439, 554, 670, 878, 1385, 2195, 2770, 4390, 18559, 29413, 37118, 58826, 92795, 121603, 147065, 185590, 243206, 294130, 608015, 1216030, 8147401, 16294802, 40737005, 81474010]

約数ペア:

[(1, 81474010), (2, 40737005), (5, 16294802), (10, 8147401), (67, 1216030), (134, 608015), (277, 294130), (335, 243206), (439, 185590), (554, 147065), (670, 121603), (878, 92795), (1385, 58826), (2195, 37118), (2770, 29413), (4390, 18559)]