81621840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1709}}^1$

素因数の和:1924

約数の個数: 80

約数和(自身を含む): 254448000

約数和(自身を除く): 172826160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 597, 796, 995, 1194, 1592, 1709, 1990, 2388, 2985, 3184, 3418, 3980, 4776, 5127, 5970, 6836, 7960, 8545, 9552, 10254, 11940, 13672, 15920, 17090, 20508, 23880, 25635, 27344, 34180, 41016, 47760, 51270, 68360, 82032, 102540, 136720, 205080, 340091, 410160, 680182, 1020273, 1360364, 1700455, 2040546, 2720728, 3400910, 4081092, 5101365, 5441456, 6801820, 8162184, 10202730, 13603640, 16324368, 20405460, 27207280, 40810920, 81621840]

約数ペア:

[(1, 81621840), (2, 40810920), (3, 27207280), (4, 20405460), (5, 16324368), (6, 13603640), (8, 10202730), (10, 8162184), (12, 6801820), (15, 5441456), (16, 5101365), (20, 4081092), (24, 3400910), (30, 2720728), (40, 2040546), (48, 1700455), (60, 1360364), (80, 1020273), (120, 680182), (199, 410160), (240, 340091), (398, 205080), (597, 136720), (796, 102540), (995, 82032), (1194, 68360), (1592, 51270), (1709, 47760), (1990, 41016), (2388, 34180), (2985, 27344), (3184, 25635), (3418, 23880), (3980, 20508), (4776, 17090), (5127, 15920), (5970, 13672), (6836, 11940), (7960, 10254), (8545, 9552)]