89214380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6959}}^1$

素因数の和:7609

約数の個数: 24

約数和(自身を含む): 187669440

約数和(自身を除く): 98455060

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 6959, 12820, 13918, 27836, 34795, 69590, 139180, 4460719, 8921438, 17842876, 22303595, 44607190, 89214380]

約数ペア:

[(1, 89214380), (2, 44607190), (4, 22303595), (5, 17842876), (10, 8921438), (20, 4460719), (641, 139180), (1282, 69590), (2564, 34795), (3205, 27836), (6410, 13918), (6959, 12820)]