19740960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13709}}^1$

素因数の和:13730

約数の個数: 72

約数和(自身を含む): 67370940

約数和(自身を除く): 47629980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13709, 27418, 41127, 54836, 68545, 82254, 109672, 123381, 137090, 164508, 205635, 219344, 246762, 274180, 329016, 411270, 438688, 493524, 548360, 616905, 658032, 822540, 987048, 1096720, 1233810, 1316064, 1645080, 1974096, 2193440, 2467620, 3290160, 3948192, 4935240, 6580320, 9870480, 19740960]

約数ペア:

[(1, 19740960), (2, 9870480), (3, 6580320), (4, 4935240), (5, 3948192), (6, 3290160), (8, 2467620), (9, 2193440), (10, 1974096), (12, 1645080), (15, 1316064), (16, 1233810), (18, 1096720), (20, 987048), (24, 822540), (30, 658032), (32, 616905), (36, 548360), (40, 493524), (45, 438688), (48, 411270), (60, 329016), (72, 274180), (80, 246762), (90, 219344), (96, 205635), (120, 164508), (144, 137090), (160, 123381), (180, 109672), (240, 82254), (288, 68545), (360, 54836), (480, 41127), (720, 27418), (1440, 13709)]