18944620

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1129}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 39866400

約数和(自身を除く): 20921780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1129, 1678, 2258, 3356, 4195, 4516, 5645, 8390, 11290, 16780, 22580, 947231, 1894462, 3788924, 4736155, 9472310, 18944620]

約数ペア:

[(1, 18944620), (2, 9472310), (4, 4736155), (5, 3788924), (10, 1894462), (20, 947231), (839, 22580), (1129, 16780), (1678, 11290), (2258, 8390), (3356, 5645), (4195, 4516)]