28380960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19709}}^1$

素因数の和:19730

約数の個数: 72

約数和(自身を含む): 96854940

約数和(自身を除く): 68473980

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, 19709, 39418, 59127, 78836, 98545, 118254, 157672, 177381, 197090, 236508, 295635, 315344, 354762, 394180, 473016, 591270, 630688, 709524, 788360, 886905, 946032, 1182540, 1419048, 1576720, 1773810, 1892064, 2365080, 2838096, 3153440, 3547620, 4730160, 5676192, 7095240, 9460320, 14190480, 28380960]

約数ペア:

[(1, 28380960), (2, 14190480), (3, 9460320), (4, 7095240), (5, 5676192), (6, 4730160), (8, 3547620), (9, 3153440), (10, 2838096), (12, 2365080), (15, 1892064), (16, 1773810), (18, 1576720), (20, 1419048), (24, 1182540), (30, 946032), (32, 886905), (36, 788360), (40, 709524), (45, 630688), (48, 591270), (60, 473016), (72, 394180), (80, 354762), (90, 315344), (96, 295635), (120, 236508), (144, 197090), (160, 177381), (180, 157672), (240, 118254), (288, 98545), (360, 78836), (480, 59127), (720, 39418), (1440, 19709)]