17804980

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1117}}^1$

素因数の和:1923

約数の個数: 24

約数和(自身を含む): 37470888

約数和(自身を除く): 19665908

約数列:

[1, 2, 4, 5, 10, 20, 797, 1117, 1594, 2234, 3188, 3985, 4468, 5585, 7970, 11170, 15940, 22340, 890249, 1780498, 3560996, 4451245, 8902490, 17804980]

約数ペア:

[(1, 17804980), (2, 8902490), (4, 4451245), (5, 3560996), (10, 1780498), (20, 890249), (797, 22340), (1117, 15940), (1594, 11170), (2234, 7970), (3188, 5585), (3985, 4468)]