204564780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{907}}^1$

素因数の和:1108

約数の個数: 144

約数和(自身を含む): 713905920

約数和(自身を除く): 509341140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 179, 180, 210, 252, 315, 358, 420, 537, 630, 716, 895, 907, 1074, 1253, 1260, 1611, 1790, 1814, 2148, 2506, 2685, 2721, 3222, 3580, 3628, 3759, 4535, 5012, 5370, 5442, 6265, 6349, 6444, 7518, 8055, 8163, 9070, 10740, 10884, 11277, 12530, 12698, 13605, 15036, 16110, 16326, 18140, 18795, 19047, 22554, 25060, 25396, 27210, 31745, 32220, 32652, 37590, 38094, 40815, 45108, 54420, 56385, 57141, 63490, 75180, 76188, 81630, 95235, 112770, 114282, 126980, 162353, 163260, 190470, 225540, 228564, 285705, 324706, 380940, 487059, 571410, 649412, 811765, 974118, 1136471, 1142820, 1461177, 1623530, 1948236, 2272942, 2435295, 2922354, 3247060, 3409413, 4545884, 4870590, 5682355, 5844708, 6818826, 7305885, 9741180, 10228239, 11364710, 13637652, 14611770, 17047065, 20456478, 22729420, 29223540, 34094130, 40912956, 51141195, 68188260, 102282390, 204564780]

約数ペア:

[(1, 204564780), (2, 102282390), (3, 68188260), (4, 51141195), (5, 40912956), (6, 34094130), (7, 29223540), (9, 22729420), (10, 20456478), (12, 17047065), (14, 14611770), (15, 13637652), (18, 11364710), (20, 10228239), (21, 9741180), (28, 7305885), (30, 6818826), (35, 5844708), (36, 5682355), (42, 4870590), (45, 4545884), (60, 3409413), (63, 3247060), (70, 2922354), (84, 2435295), (90, 2272942), (105, 1948236), (126, 1623530), (140, 1461177), (179, 1142820), (180, 1136471), (210, 974118), (252, 811765), (315, 649412), (358, 571410), (420, 487059), (537, 380940), (630, 324706), (716, 285705), (895, 228564), (907, 225540), (1074, 190470), (1253, 163260), (1260, 162353), (1611, 126980), (1790, 114282), (1814, 112770), (2148, 95235), (2506, 81630), (2685, 76188), (2721, 75180), (3222, 63490), (3580, 57141), (3628, 56385), (3759, 54420), (4535, 45108), (5012, 40815), (5370, 38094), (5442, 37590), (6265, 32652), (6349, 32220), (6444, 31745), (7518, 27210), (8055, 25396), (8163, 25060), (9070, 22554), (10740, 19047), (10884, 18795), (11277, 18140), (12530, 16326), (12698, 16110), (13605, 15036)]