72940760

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2113}}^1$

素因数の和:2987

約数の個数: 32

約数和(自身を含む): 164384640

約数和(自身を除く): 91443880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 2113, 3452, 4226, 4315, 6904, 8452, 8630, 10565, 16904, 17260, 21130, 34520, 42260, 84520, 1823519, 3647038, 7294076, 9117595, 14588152, 18235190, 36470380, 72940760]

約数ペア:

[(1, 72940760), (2, 36470380), (4, 18235190), (5, 14588152), (8, 9117595), (10, 7294076), (20, 3647038), (40, 1823519), (863, 84520), (1726, 42260), (2113, 34520), (3452, 21130), (4226, 17260), (4315, 16904), (6904, 10565), (8452, 8630)]