19736390

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3079}}^1$

素因数の和:3727

約数の個数: 16

約数和(自身を含む): 35592480

約数和(自身を除く): 15856090

約数列:

[1, 2, 5, 10, 641, 1282, 3079, 3205, 6158, 6410, 15395, 30790, 1973639, 3947278, 9868195, 19736390]

約数ペア:

[(1, 19736390), (2, 9868195), (5, 3947278), (10, 1973639), (641, 30790), (1282, 15395), (3079, 6410), (3205, 6158)]