31080580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 69552000

約数和(自身を除く): 38471420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 919, 1691, 1780, 1838, 3382, 3676, 4595, 6764, 8455, 9190, 16910, 17461, 18380, 33820, 34922, 69844, 81791, 87305, 163582, 174610, 327164, 349220, 408955, 817910, 1554029, 1635820, 3108058, 6216116, 7770145, 15540290, 31080580]

約数ペア:

[(1, 31080580), (2, 15540290), (4, 7770145), (5, 6216116), (10, 3108058), (19, 1635820), (20, 1554029), (38, 817910), (76, 408955), (89, 349220), (95, 327164), (178, 174610), (190, 163582), (356, 87305), (380, 81791), (445, 69844), (890, 34922), (919, 33820), (1691, 18380), (1780, 17461), (1838, 16910), (3382, 9190), (3676, 8455), (4595, 6764)]