16897540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{863}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 22293500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 863, 890, 979, 1726, 1780, 1958, 3452, 3916, 4315, 4895, 8630, 9493, 9790, 17260, 18986, 19580, 37972, 47465, 76807, 94930, 153614, 189860, 307228, 384035, 768070, 844877, 1536140, 1689754, 3379508, 4224385, 8448770, 16897540]

約数ペア:

[(1, 16897540), (2, 8448770), (4, 4224385), (5, 3379508), (10, 1689754), (11, 1536140), (20, 844877), (22, 768070), (44, 384035), (55, 307228), (89, 189860), (110, 153614), (178, 94930), (220, 76807), (356, 47465), (445, 37972), (863, 19580), (890, 18986), (979, 17260), (1726, 9790), (1780, 9493), (1958, 8630), (3452, 4895), (3916, 4315)]