20526660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1481}}^1$

素因数の和:1514

約数の個数: 144

約数和(自身を含む): 77680512

約数和(自身を除く): 57153852

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1481, 1540, 1980, 2310, 2772, 2962, 3465, 4443, 4620, 5924, 6930, 7405, 8886, 10367, 13329, 13860, 14810, 16291, 17772, 20734, 22215, 26658, 29620, 31101, 32582, 41468, 44430, 48873, 51835, 53316, 62202, 65164, 66645, 81455, 88860, 93303, 97746, 103670, 114037, 124404, 133290, 146619, 155505, 162910, 186606, 195492, 207340, 228074, 244365, 266580, 293238, 311010, 325820, 342111, 373212, 456148, 466515, 488730, 570185, 586476, 622020, 684222, 733095, 933030, 977460, 1026333, 1140370, 1368444, 1466190, 1710555, 1866060, 2052666, 2280740, 2932380, 3421110, 4105332, 5131665, 6842220, 10263330, 20526660]

約数ペア:

[(1, 20526660), (2, 10263330), (3, 6842220), (4, 5131665), (5, 4105332), (6, 3421110), (7, 2932380), (9, 2280740), (10, 2052666), (11, 1866060), (12, 1710555), (14, 1466190), (15, 1368444), (18, 1140370), (20, 1026333), (21, 977460), (22, 933030), (28, 733095), (30, 684222), (33, 622020), (35, 586476), (36, 570185), (42, 488730), (44, 466515), (45, 456148), (55, 373212), (60, 342111), (63, 325820), (66, 311010), (70, 293238), (77, 266580), (84, 244365), (90, 228074), (99, 207340), (105, 195492), (110, 186606), (126, 162910), (132, 155505), (140, 146619), (154, 133290), (165, 124404), (180, 114037), (198, 103670), (210, 97746), (220, 93303), (231, 88860), (252, 81455), (308, 66645), (315, 65164), (330, 62202), (385, 53316), (396, 51835), (420, 48873), (462, 44430), (495, 41468), (630, 32582), (660, 31101), (693, 29620), (770, 26658), (924, 22215), (990, 20734), (1155, 17772), (1260, 16291), (1386, 14810), (1481, 13860), (1540, 13329), (1980, 10367), (2310, 8886), (2772, 7405), (2962, 6930), (3465, 5924), (4443, 4620)]