81551690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1153}}^1$

素因数の和:1814

約数の個数: 32

約数和(自身を含む): 160526016

約数和(自身を除く): 78974326

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 643, 1153, 1286, 2306, 3215, 5765, 6430, 7073, 11530, 12683, 14146, 25366, 35365, 63415, 70730, 126830, 741379, 1482758, 3706895, 7413790, 8155169, 16310338, 40775845, 81551690]

約数ペア:

[(1, 81551690), (2, 40775845), (5, 16310338), (10, 8155169), (11, 7413790), (22, 3706895), (55, 1482758), (110, 741379), (643, 126830), (1153, 70730), (1286, 63415), (2306, 35365), (3215, 25366), (5765, 14146), (6430, 12683), (7073, 11530)]