19748960

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1$

素因数の和:269

約数の個数: 144

約数和(自身を含む): 59466960

約数和(自身を除く): 39718000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 229, 245, 280, 308, 352, 385, 392, 440, 458, 490, 539, 560, 616, 770, 784, 880, 916, 980, 1078, 1120, 1145, 1232, 1540, 1568, 1603, 1760, 1832, 1960, 2156, 2290, 2464, 2519, 2695, 3080, 3206, 3664, 3920, 4312, 4580, 5038, 5390, 6160, 6412, 7328, 7840, 8015, 8624, 9160, 10076, 10780, 11221, 12320, 12595, 12824, 16030, 17248, 17633, 18320, 20152, 21560, 22442, 25190, 25648, 32060, 35266, 36640, 40304, 43120, 44884, 50380, 51296, 56105, 64120, 70532, 80608, 86240, 88165, 89768, 100760, 112210, 123431, 128240, 141064, 176330, 179536, 201520, 224420, 246862, 256480, 282128, 352660, 359072, 403040, 448840, 493724, 564256, 617155, 705320, 897680, 987448, 1234310, 1410640, 1795360, 1974896, 2468620, 2821280, 3949792, 4937240, 9874480, 19748960]

約数ペア:

[(1, 19748960), (2, 9874480), (4, 4937240), (5, 3949792), (7, 2821280), (8, 2468620), (10, 1974896), (11, 1795360), (14, 1410640), (16, 1234310), (20, 987448), (22, 897680), (28, 705320), (32, 617155), (35, 564256), (40, 493724), (44, 448840), (49, 403040), (55, 359072), (56, 352660), (70, 282128), (77, 256480), (80, 246862), (88, 224420), (98, 201520), (110, 179536), (112, 176330), (140, 141064), (154, 128240), (160, 123431), (176, 112210), (196, 100760), (220, 89768), (224, 88165), (229, 86240), (245, 80608), (280, 70532), (308, 64120), (352, 56105), (385, 51296), (392, 50380), (440, 44884), (458, 43120), (490, 40304), (539, 36640), (560, 35266), (616, 32060), (770, 25648), (784, 25190), (880, 22442), (916, 21560), (980, 20152), (1078, 18320), (1120, 17633), (1145, 17248), (1232, 16030), (1540, 12824), (1568, 12595), (1603, 12320), (1760, 11221), (1832, 10780), (1960, 10076), (2156, 9160), (2290, 8624), (2464, 8015), (2519, 7840), (2695, 7328), (3080, 6412), (3206, 6160), (3664, 5390), (3920, 5038), (4312, 4580)]