40889390

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6379}}^1$

素因数の和:7027

約数の個数: 16

約数和(自身を含む): 73727280

約数和(自身を除く): 32837890

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6379, 6410, 12758, 31895, 63790, 4088939, 8177878, 20444695, 40889390]

約数ペア:

[(1, 40889390), (2, 20444695), (5, 8177878), (10, 4088939), (641, 63790), (1282, 31895), (3205, 12758), (6379, 6410)]