18728120

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5641}}^1$

素因数の和:5735

約数の個数: 32

約数和(自身を含む): 42653520

約数和(自身を除く): 23925400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5641, 11282, 22564, 28205, 45128, 56410, 112820, 225640, 468203, 936406, 1872812, 2341015, 3745624, 4682030, 9364060, 18728120]

約数ペア:

[(1, 18728120), (2, 9364060), (4, 4682030), (5, 3745624), (8, 2341015), (10, 1872812), (20, 936406), (40, 468203), (83, 225640), (166, 112820), (332, 56410), (415, 45128), (664, 28205), (830, 22564), (1660, 11282), (3320, 5641)]