721897920

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{27851}}^1$

素因数の和:27880

約数の個数: 140

約数和(自身を含む): 2568010104

約数和(自身を除く): 1846112184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 864, 960, 1080, 1296, 1440, 1620, 1728, 2160, 2592, 2880, 3240, 4320, 5184, 6480, 8640, 12960, 25920, 27851, 55702, 83553, 111404, 139255, 167106, 222808, 250659, 278510, 334212, 417765, 445616, 501318, 557020, 668424, 751977, 835530, 891232, 1002636, 1114040, 1253295, 1336848, 1503954, 1671060, 1782464, 2005272, 2228080, 2255931, 2506590, 2673696, 3007908, 3342120, 3759885, 4010544, 4456160, 4511862, 5013180, 5347392, 6015816, 6684240, 7519770, 8021088, 8912320, 9023724, 10026360, 11279655, 12031632, 13368480, 15039540, 16042176, 18047448, 20052720, 22559310, 24063264, 26736960, 30079080, 36094896, 40105440, 45118620, 48126528, 60158160, 72189792, 80210880, 90237240, 120316320, 144379584, 180474480, 240632640, 360948960, 721897920]

約数ペア:

[(1, 721897920), (2, 360948960), (3, 240632640), (4, 180474480), (5, 144379584), (6, 120316320), (8, 90237240), (9, 80210880), (10, 72189792), (12, 60158160), (15, 48126528), (16, 45118620), (18, 40105440), (20, 36094896), (24, 30079080), (27, 26736960), (30, 24063264), (32, 22559310), (36, 20052720), (40, 18047448), (45, 16042176), (48, 15039540), (54, 13368480), (60, 12031632), (64, 11279655), (72, 10026360), (80, 9023724), (81, 8912320), (90, 8021088), (96, 7519770), (108, 6684240), (120, 6015816), (135, 5347392), (144, 5013180), (160, 4511862), (162, 4456160), (180, 4010544), (192, 3759885), (216, 3342120), (240, 3007908), (270, 2673696), (288, 2506590), (320, 2255931), (324, 2228080), (360, 2005272), (405, 1782464), (432, 1671060), (480, 1503954), (540, 1336848), (576, 1253295), (648, 1114040), (720, 1002636), (810, 891232), (864, 835530), (960, 751977), (1080, 668424), (1296, 557020), (1440, 501318), (1620, 445616), (1728, 417765), (2160, 334212), (2592, 278510), (2880, 250659), (3240, 222808), (4320, 167106), (5184, 139255), (6480, 111404), (8640, 83553), (12960, 55702), (25920, 27851)]