28827540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 101267712

約数和(自身を除く): 72440172

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, 137, 140, 167, 180, 210, 252, 274, 315, 334, 411, 420, 501, 548, 630, 668, 685, 822, 835, 959, 1002, 1169, 1233, 1260, 1370, 1503, 1644, 1670, 1918, 2004, 2055, 2338, 2466, 2505, 2740, 2877, 3006, 3340, 3507, 3836, 4110, 4676, 4795, 4932, 5010, 5754, 5845, 6012, 6165, 7014, 7515, 8220, 8631, 9590, 10020, 10521, 11508, 11690, 12330, 14028, 14385, 15030, 17262, 17535, 19180, 21042, 22879, 23380, 24660, 28770, 30060, 34524, 35070, 42084, 43155, 45758, 52605, 57540, 68637, 70140, 86310, 91516, 105210, 114395, 137274, 160153, 172620, 205911, 210420, 228790, 274548, 320306, 343185, 411822, 457580, 480459, 640612, 686370, 800765, 823644, 960918, 1029555, 1372740, 1441377, 1601530, 1921836, 2059110, 2402295, 2882754, 3203060, 4118220, 4804590, 5765508, 7206885, 9609180, 14413770, 28827540]

約数ペア:

[(1, 28827540), (2, 14413770), (3, 9609180), (4, 7206885), (5, 5765508), (6, 4804590), (7, 4118220), (9, 3203060), (10, 2882754), (12, 2402295), (14, 2059110), (15, 1921836), (18, 1601530), (20, 1441377), (21, 1372740), (28, 1029555), (30, 960918), (35, 823644), (36, 800765), (42, 686370), (45, 640612), (60, 480459), (63, 457580), (70, 411822), (84, 343185), (90, 320306), (105, 274548), (126, 228790), (137, 210420), (140, 205911), (167, 172620), (180, 160153), (210, 137274), (252, 114395), (274, 105210), (315, 91516), (334, 86310), (411, 70140), (420, 68637), (501, 57540), (548, 52605), (630, 45758), (668, 43155), (685, 42084), (822, 35070), (835, 34524), (959, 30060), (1002, 28770), (1169, 24660), (1233, 23380), (1260, 22879), (1370, 21042), (1503, 19180), (1644, 17535), (1670, 17262), (1918, 15030), (2004, 14385), (2055, 14028), (2338, 12330), (2466, 11690), (2505, 11508), (2740, 10521), (2877, 10020), (3006, 9590), (3340, 8631), (3507, 8220), (3836, 7515), (4110, 7014), (4676, 6165), (4795, 6012), (4932, 5845), (5010, 5754)]