19588180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 23876780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 388, 439, 460, 485, 878, 970, 1756, 1940, 2195, 2231, 4390, 4462, 8780, 8924, 10097, 11155, 20194, 22310, 40388, 42583, 44620, 50485, 85166, 100970, 170332, 201940, 212915, 425830, 851660, 979409, 1958818, 3917636, 4897045, 9794090, 19588180]

約数ペア:

[(1, 19588180), (2, 9794090), (4, 4897045), (5, 3917636), (10, 1958818), (20, 979409), (23, 851660), (46, 425830), (92, 212915), (97, 201940), (115, 170332), (194, 100970), (230, 85166), (388, 50485), (439, 44620), (460, 42583), (485, 40388), (878, 22310), (970, 20194), (1756, 11155), (1940, 10097), (2195, 8924), (2231, 8780), (4390, 4462)]