20112322480

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1\times {\mathrm{2851}}^1$

素因数の和:3782

約数の個数: 80

約数和(自身を含む): 47265055200

約数和(自身を除く): 27152732720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 809, 872, 1090, 1618, 1744, 2180, 2851, 3236, 4045, 4360, 5702, 6472, 8090, 8720, 11404, 12944, 14255, 16180, 22808, 28510, 32360, 45616, 57020, 64720, 88181, 114040, 176362, 228080, 310759, 352724, 440905, 621518, 705448, 881810, 1243036, 1410896, 1553795, 1763620, 2306459, 2486072, 3107590, 3527240, 4612918, 4972144, 6215180, 7054480, 9225836, 11532295, 12430360, 18451672, 23064590, 24860720, 36903344, 46129180, 92258360, 184516720, 251404031, 502808062, 1005616124, 1257020155, 2011232248, 2514040310, 4022464496, 5028080620, 10056161240, 20112322480]

約数ペア:

[(1, 20112322480), (2, 10056161240), (4, 5028080620), (5, 4022464496), (8, 2514040310), (10, 2011232248), (16, 1257020155), (20, 1005616124), (40, 502808062), (80, 251404031), (109, 184516720), (218, 92258360), (436, 46129180), (545, 36903344), (809, 24860720), (872, 23064590), (1090, 18451672), (1618, 12430360), (1744, 11532295), (2180, 9225836), (2851, 7054480), (3236, 6215180), (4045, 4972144), (4360, 4612918), (5702, 3527240), (6472, 3107590), (8090, 2486072), (8720, 2306459), (11404, 1763620), (12944, 1553795), (14255, 1410896), (16180, 1243036), (22808, 881810), (28510, 705448), (32360, 621518), (45616, 440905), (57020, 352724), (64720, 310759), (88181, 228080), (114040, 176362)]