89445140

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6977}}^1$

素因数の和:7627

約数の個数: 24

約数和(自身を含む): 188154792

約数和(自身を除く): 98709652

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 6977, 12820, 13954, 27908, 34885, 69770, 139540, 4472257, 8944514, 17889028, 22361285, 44722570, 89445140]

約数ペア:

[(1, 89445140), (2, 44722570), (4, 22361285), (5, 17889028), (10, 8944514), (20, 4472257), (641, 139540), (1282, 69770), (2564, 34885), (3205, 27908), (6410, 13954), (6977, 12820)]