16945640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6323}}^1$

素因数の和:6401

約数の個数: 32

約数和(自身を含む): 38702880

約数和(自身を除く): 21757240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6323, 12646, 25292, 31615, 50584, 63230, 126460, 252920, 423641, 847282, 1694564, 2118205, 3389128, 4236410, 8472820, 16945640]

約数ペア:

[(1, 16945640), (2, 8472820), (4, 4236410), (5, 3389128), (8, 2118205), (10, 1694564), (20, 847282), (40, 423641), (67, 252920), (134, 126460), (268, 63230), (335, 50584), (536, 31615), (670, 25292), (1340, 12646), (2680, 6323)]