40389410

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6301}}^1$

素因数の和:6949

約数の個数: 16

約数和(自身を含む): 72825912

約数和(自身を除く): 32436502

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6301, 6410, 12602, 31505, 63010, 4038941, 8077882, 20194705, 40389410]

約数ペア:

[(1, 40389410), (2, 20194705), (5, 8077882), (10, 4038941), (641, 63010), (1282, 31505), (3205, 12602), (6301, 6410)]