81344041520

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2964433}}^1$

素因数の和:2964467

約数の個数: 80

約数和(自身を含む): 220553889600

約数和(自身を除く): 139209848080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 13720, 27440, 2964433, 5928866, 11857732, 14822165, 20751031, 23715464, 29644330, 41502062, 47430928, 59288660, 83004124, 103755155, 118577320, 145257217, 166008248, 207510310, 237154640, 290514434, 332016496, 415020620, 581028868, 726286085, 830041240, 1016800519, 1162057736, 1452572170, 1660082480, 2033601038, 2324115472, 2905144340, 4067202076, 5084002595, 5810288680, 8134404152, 10168005190, 11620577360, 16268808304, 20336010380, 40672020760, 81344041520]

約数ペア:

[(1, 81344041520), (2, 40672020760), (4, 20336010380), (5, 16268808304), (7, 11620577360), (8, 10168005190), (10, 8134404152), (14, 5810288680), (16, 5084002595), (20, 4067202076), (28, 2905144340), (35, 2324115472), (40, 2033601038), (49, 1660082480), (56, 1452572170), (70, 1162057736), (80, 1016800519), (98, 830041240), (112, 726286085), (140, 581028868), (196, 415020620), (245, 332016496), (280, 290514434), (343, 237154640), (392, 207510310), (490, 166008248), (560, 145257217), (686, 118577320), (784, 103755155), (980, 83004124), (1372, 59288660), (1715, 47430928), (1960, 41502062), (2744, 29644330), (3430, 23715464), (3920, 20751031), (5488, 14822165), (6860, 11857732), (13720, 5928866), (27440, 2964433)]