681036640

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{8669}}^1$

素因数の和:9175

約数の個数: 48

約数和(自身を含む): 1612411920

約数和(自身を除く): 931375280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1964, 2455, 3928, 4910, 7856, 8669, 9820, 15712, 17338, 19640, 34676, 39280, 43345, 69352, 78560, 86690, 138704, 173380, 277408, 346760, 693520, 1387040, 4256479, 8512958, 17025916, 21282395, 34051832, 42564790, 68103664, 85129580, 136207328, 170259160, 340518320, 681036640]

約数ペア:

[(1, 681036640), (2, 340518320), (4, 170259160), (5, 136207328), (8, 85129580), (10, 68103664), (16, 42564790), (20, 34051832), (32, 21282395), (40, 17025916), (80, 8512958), (160, 4256479), (491, 1387040), (982, 693520), (1964, 346760), (2455, 277408), (3928, 173380), (4910, 138704), (7856, 86690), (8669, 78560), (9820, 69352), (15712, 43345), (17338, 39280), (19640, 34676)]