215221860

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{18979}}^1$

素因数の和:19007

約数の個数: 120

約数和(自身を含む): 771650880

約数和(自身を除く): 556429020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 18979, 37958, 56937, 75916, 94895, 113874, 132853, 170811, 189790, 227748, 265706, 284685, 341622, 379580, 398559, 512433, 531412, 569370, 664265, 683244, 797118, 854055, 1024866, 1138740, 1195677, 1328530, 1537299, 1594236, 1708110, 1992795, 2049732, 2391354, 2562165, 2657060, 3074598, 3416220, 3587031, 3985590, 4782708, 5124330, 5978385, 6149196, 7174062, 7686495, 7971180, 10248660, 10761093, 11956770, 14348124, 15372990, 17935155, 21522186, 23913540, 30745980, 35870310, 43044372, 53805465, 71740620, 107610930, 215221860]

約数ペア:

[(1, 215221860), (2, 107610930), (3, 71740620), (4, 53805465), (5, 43044372), (6, 35870310), (7, 30745980), (9, 23913540), (10, 21522186), (12, 17935155), (14, 15372990), (15, 14348124), (18, 11956770), (20, 10761093), (21, 10248660), (27, 7971180), (28, 7686495), (30, 7174062), (35, 6149196), (36, 5978385), (42, 5124330), (45, 4782708), (54, 3985590), (60, 3587031), (63, 3416220), (70, 3074598), (81, 2657060), (84, 2562165), (90, 2391354), (105, 2049732), (108, 1992795), (126, 1708110), (135, 1594236), (140, 1537299), (162, 1328530), (180, 1195677), (189, 1138740), (210, 1024866), (252, 854055), (270, 797118), (315, 683244), (324, 664265), (378, 569370), (405, 531412), (420, 512433), (540, 398559), (567, 379580), (630, 341622), (756, 284685), (810, 265706), (945, 227748), (1134, 189790), (1260, 170811), (1620, 132853), (1890, 113874), (2268, 94895), (2835, 75916), (3780, 56937), (5670, 37958), (11340, 18979)]