81641996

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{2213}}^1$

素因数の和:2641

約数の個数: 24

約数和(自身を含む): 149524704

約数和(自身を除く): 67882708

約数列:

[1, 2, 4, 23, 46, 92, 401, 802, 1604, 2213, 4426, 8852, 9223, 18446, 36892, 50899, 101798, 203596, 887413, 1774826, 3549652, 20410499, 40820998, 81641996]

約数ペア:

[(1, 81641996), (2, 40820998), (4, 20410499), (23, 3549652), (46, 1774826), (92, 887413), (401, 203596), (802, 101798), (1604, 50899), (2213, 36892), (4426, 18446), (8852, 9223)]