212970520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:453

約数の個数: 128

約数和(自身を含む): 573356160

約数和(自身を除く): 360385640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 61, 70, 74, 122, 140, 148, 185, 244, 259, 280, 296, 305, 337, 370, 427, 488, 518, 610, 674, 740, 854, 1036, 1220, 1295, 1348, 1480, 1685, 1708, 2072, 2135, 2257, 2359, 2440, 2590, 2696, 3370, 3416, 4270, 4514, 4718, 5180, 6740, 8540, 9028, 9436, 10360, 11285, 11795, 12469, 13480, 15799, 17080, 18056, 18872, 20557, 22570, 23590, 24938, 31598, 41114, 45140, 47180, 49876, 62345, 63196, 78995, 82228, 87283, 90280, 94360, 99752, 102785, 124690, 126392, 143899, 157990, 164456, 174566, 205570, 249380, 287798, 315980, 349132, 411140, 436415, 498760, 575596, 631960, 698264, 719495, 760609, 822280, 872830, 1151192, 1438990, 1521218, 1745660, 2877980, 3042436, 3491320, 3803045, 5324263, 5755960, 6084872, 7606090, 10648526, 15212180, 21297052, 26621315, 30424360, 42594104, 53242630, 106485260, 212970520]

約数ペア:

[(1, 212970520), (2, 106485260), (4, 53242630), (5, 42594104), (7, 30424360), (8, 26621315), (10, 21297052), (14, 15212180), (20, 10648526), (28, 7606090), (35, 6084872), (37, 5755960), (40, 5324263), (56, 3803045), (61, 3491320), (70, 3042436), (74, 2877980), (122, 1745660), (140, 1521218), (148, 1438990), (185, 1151192), (244, 872830), (259, 822280), (280, 760609), (296, 719495), (305, 698264), (337, 631960), (370, 575596), (427, 498760), (488, 436415), (518, 411140), (610, 349132), (674, 315980), (740, 287798), (854, 249380), (1036, 205570), (1220, 174566), (1295, 164456), (1348, 157990), (1480, 143899), (1685, 126392), (1708, 124690), (2072, 102785), (2135, 99752), (2257, 94360), (2359, 90280), (2440, 87283), (2590, 82228), (2696, 78995), (3370, 63196), (3416, 62345), (4270, 49876), (4514, 47180), (4718, 45140), (5180, 41114), (6740, 31598), (8540, 24938), (9028, 23590), (9436, 22570), (10360, 20557), (11285, 18872), (11795, 18056), (12469, 17080), (13480, 15799)]