49818640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6997}}^1$

素因数の和:7099

約数の個数: 40

約数和(自身を含む): 117146520

約数和(自身を除く): 67327880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 6997, 7120, 13994, 27988, 34985, 55976, 69970, 111952, 139940, 279880, 559760, 622733, 1245466, 2490932, 3113665, 4981864, 6227330, 9963728, 12454660, 24909320, 49818640]

約数ペア:

[(1, 49818640), (2, 24909320), (4, 12454660), (5, 9963728), (8, 6227330), (10, 4981864), (16, 3113665), (20, 2490932), (40, 1245466), (80, 622733), (89, 559760), (178, 279880), (356, 139940), (445, 111952), (712, 69970), (890, 55976), (1424, 34985), (1780, 27988), (3560, 13994), (6997, 7120)]