216821640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{719}}^1$

素因数の和:1099

約数の個数: 128

約数和(自身を含む): 746496000

約数和(自身を除く): 529674360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 359, 420, 718, 719, 840, 1077, 1436, 1438, 1795, 2154, 2157, 2513, 2872, 2876, 3590, 3595, 4308, 4314, 5026, 5033, 5385, 5752, 7180, 7190, 7539, 8616, 8628, 10052, 10066, 10770, 10785, 12565, 14360, 14380, 15078, 15099, 17256, 20104, 20132, 21540, 21570, 25130, 25165, 28760, 30156, 30198, 37695, 40264, 43080, 43140, 50260, 50330, 60312, 60396, 75390, 75495, 86280, 100520, 100660, 120792, 150780, 150990, 201320, 258121, 301560, 301980, 516242, 603960, 774363, 1032484, 1290605, 1548726, 1806847, 2064968, 2581210, 3097452, 3613694, 3871815, 5162420, 5420541, 6194904, 7227388, 7743630, 9034235, 10324840, 10841082, 14454776, 15487260, 18068470, 21682164, 27102705, 30974520, 36136940, 43364328, 54205410, 72273880, 108410820, 216821640]

約数ペア:

[(1, 216821640), (2, 108410820), (3, 72273880), (4, 54205410), (5, 43364328), (6, 36136940), (7, 30974520), (8, 27102705), (10, 21682164), (12, 18068470), (14, 15487260), (15, 14454776), (20, 10841082), (21, 10324840), (24, 9034235), (28, 7743630), (30, 7227388), (35, 6194904), (40, 5420541), (42, 5162420), (56, 3871815), (60, 3613694), (70, 3097452), (84, 2581210), (105, 2064968), (120, 1806847), (140, 1548726), (168, 1290605), (210, 1032484), (280, 774363), (359, 603960), (420, 516242), (718, 301980), (719, 301560), (840, 258121), (1077, 201320), (1436, 150990), (1438, 150780), (1795, 120792), (2154, 100660), (2157, 100520), (2513, 86280), (2872, 75495), (2876, 75390), (3590, 60396), (3595, 60312), (4308, 50330), (4314, 50260), (5026, 43140), (5033, 43080), (5385, 40264), (5752, 37695), (7180, 30198), (7190, 30156), (7539, 28760), (8616, 25165), (8628, 25130), (10052, 21570), (10066, 21540), (10770, 20132), (10785, 20104), (12565, 17256), (14360, 15099), (14380, 15078)]