19640880

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{433}}^1$

素因数の和:465

約数の個数: 200

約数和(自身を含む): 78140832

約数和(自身を除く): 58499952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 433, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 866, 945, 1008, 1080, 1134, 1260, 1296, 1299, 1512, 1620, 1680, 1732, 1890, 2160, 2165, 2268, 2520, 2598, 2835, 3024, 3031, 3240, 3464, 3780, 3897, 4330, 4536, 5040, 5196, 5670, 6062, 6480, 6495, 6928, 7560, 7794, 8660, 9072, 9093, 10392, 11340, 11691, 12124, 12990, 15120, 15155, 15588, 17320, 18186, 19485, 20784, 22680, 23382, 24248, 25980, 27279, 30310, 31176, 34640, 35073, 36372, 38970, 45360, 45465, 46764, 48496, 51960, 54558, 58455, 60620, 62352, 70146, 72744, 77940, 81837, 90930, 93528, 103920, 109116, 116910, 121240, 136395, 140292, 145488, 155880, 163674, 175365, 181860, 187056, 218232, 233820, 242480, 245511, 272790, 280584, 311760, 327348, 350730, 363720, 409185, 436464, 467640, 491022, 545580, 561168, 654696, 701460, 727440, 818370, 935280, 982044, 1091160, 1227555, 1309392, 1402920, 1636740, 1964088, 2182320, 2455110, 2805840, 3273480, 3928176, 4910220, 6546960, 9820440, 19640880]

約数ペア:

[(1, 19640880), (2, 9820440), (3, 6546960), (4, 4910220), (5, 3928176), (6, 3273480), (7, 2805840), (8, 2455110), (9, 2182320), (10, 1964088), (12, 1636740), (14, 1402920), (15, 1309392), (16, 1227555), (18, 1091160), (20, 982044), (21, 935280), (24, 818370), (27, 727440), (28, 701460), (30, 654696), (35, 561168), (36, 545580), (40, 491022), (42, 467640), (45, 436464), (48, 409185), (54, 363720), (56, 350730), (60, 327348), (63, 311760), (70, 280584), (72, 272790), (80, 245511), (81, 242480), (84, 233820), (90, 218232), (105, 187056), (108, 181860), (112, 175365), (120, 163674), (126, 155880), (135, 145488), (140, 140292), (144, 136395), (162, 121240), (168, 116910), (180, 109116), (189, 103920), (210, 93528), (216, 90930), (240, 81837), (252, 77940), (270, 72744), (280, 70146), (315, 62352), (324, 60620), (336, 58455), (360, 54558), (378, 51960), (405, 48496), (420, 46764), (432, 45465), (433, 45360), (504, 38970), (540, 36372), (560, 35073), (567, 34640), (630, 31176), (648, 30310), (720, 27279), (756, 25980), (810, 24248), (840, 23382), (866, 22680), (945, 20784), (1008, 19485), (1080, 18186), (1134, 17320), (1260, 15588), (1296, 15155), (1299, 15120), (1512, 12990), (1620, 12124), (1680, 11691), (1732, 11340), (1890, 10392), (2160, 9093), (2165, 9072), (2268, 8660), (2520, 7794), (2598, 7560), (2835, 6928), (3024, 6495), (3031, 6480), (3240, 6062), (3464, 5670), (3780, 5196), (3897, 5040), (4330, 4536)]