18007460

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1303}}^1$

素因数の和:2003

約数の個数: 24

約数和(自身を含む): 37899456

約数和(自身を除く): 19891996

約数列:

[1, 2, 4, 5, 10, 20, 691, 1303, 1382, 2606, 2764, 3455, 5212, 6515, 6910, 13030, 13820, 26060, 900373, 1800746, 3601492, 4501865, 9003730, 18007460]

約数ペア:

[(1, 18007460), (2, 9003730), (4, 4501865), (5, 3601492), (10, 1800746), (20, 900373), (691, 26060), (1303, 13820), (1382, 13030), (2606, 6910), (2764, 6515), (3455, 5212)]