80801520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1709}}^1$

素因数の和:1922

約数の個数: 80

約数和(自身を含む): 251903520

約数和(自身を除く): 171102000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 591, 788, 985, 1182, 1576, 1709, 1970, 2364, 2955, 3152, 3418, 3940, 4728, 5127, 5910, 6836, 7880, 8545, 9456, 10254, 11820, 13672, 15760, 17090, 20508, 23640, 25635, 27344, 34180, 41016, 47280, 51270, 68360, 82032, 102540, 136720, 205080, 336673, 410160, 673346, 1010019, 1346692, 1683365, 2020038, 2693384, 3366730, 4040076, 5050095, 5386768, 6733460, 8080152, 10100190, 13466920, 16160304, 20200380, 26933840, 40400760, 80801520]

約数ペア:

[(1, 80801520), (2, 40400760), (3, 26933840), (4, 20200380), (5, 16160304), (6, 13466920), (8, 10100190), (10, 8080152), (12, 6733460), (15, 5386768), (16, 5050095), (20, 4040076), (24, 3366730), (30, 2693384), (40, 2020038), (48, 1683365), (60, 1346692), (80, 1010019), (120, 673346), (197, 410160), (240, 336673), (394, 205080), (591, 136720), (788, 102540), (985, 82032), (1182, 68360), (1576, 51270), (1709, 47280), (1970, 41016), (2364, 34180), (2955, 27344), (3152, 25635), (3418, 23640), (3940, 20508), (4728, 17090), (5127, 15760), (5910, 13672), (6836, 11820), (7880, 10254), (8545, 9456)]