20937420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 192

約数和(自身を含む): 77414400

約数和(自身を除く): 56476980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 174, 180, 189, 191, 203, 210, 252, 261, 270, 290, 315, 348, 378, 382, 406, 420, 435, 522, 540, 573, 580, 609, 630, 756, 764, 783, 812, 870, 945, 955, 1015, 1044, 1146, 1218, 1260, 1305, 1337, 1566, 1719, 1740, 1827, 1890, 1910, 2030, 2292, 2436, 2610, 2674, 2865, 3045, 3132, 3438, 3654, 3780, 3820, 3915, 4011, 4060, 5157, 5220, 5348, 5481, 5539, 5730, 6090, 6685, 6876, 7308, 7830, 8022, 8595, 9135, 10314, 10962, 11078, 11460, 12033, 12180, 13370, 15660, 16044, 16617, 17190, 18270, 20055, 20628, 21924, 22156, 24066, 25785, 26740, 27405, 27695, 33234, 34380, 36099, 36540, 38773, 40110, 48132, 49851, 51570, 54810, 55390, 60165, 66468, 72198, 77546, 80220, 83085, 99702, 103140, 109620, 110780, 116319, 120330, 144396, 149553, 155092, 166170, 180495, 193865, 199404, 232638, 240660, 249255, 299106, 332340, 348957, 360990, 387730, 465276, 498510, 581595, 598212, 697914, 721980, 747765, 775460, 997020, 1046871, 1163190, 1395828, 1495530, 1744785, 2093742, 2326380, 2991060, 3489570, 4187484, 5234355, 6979140, 10468710, 20937420]

約数ペア:

[(1, 20937420), (2, 10468710), (3, 6979140), (4, 5234355), (5, 4187484), (6, 3489570), (7, 2991060), (9, 2326380), (10, 2093742), (12, 1744785), (14, 1495530), (15, 1395828), (18, 1163190), (20, 1046871), (21, 997020), (27, 775460), (28, 747765), (29, 721980), (30, 697914), (35, 598212), (36, 581595), (42, 498510), (45, 465276), (54, 387730), (58, 360990), (60, 348957), (63, 332340), (70, 299106), (84, 249255), (87, 240660), (90, 232638), (105, 199404), (108, 193865), (116, 180495), (126, 166170), (135, 155092), (140, 149553), (145, 144396), (174, 120330), (180, 116319), (189, 110780), (191, 109620), (203, 103140), (210, 99702), (252, 83085), (261, 80220), (270, 77546), (290, 72198), (315, 66468), (348, 60165), (378, 55390), (382, 54810), (406, 51570), (420, 49851), (435, 48132), (522, 40110), (540, 38773), (573, 36540), (580, 36099), (609, 34380), (630, 33234), (756, 27695), (764, 27405), (783, 26740), (812, 25785), (870, 24066), (945, 22156), (955, 21924), (1015, 20628), (1044, 20055), (1146, 18270), (1218, 17190), (1260, 16617), (1305, 16044), (1337, 15660), (1566, 13370), (1719, 12180), (1740, 12033), (1827, 11460), (1890, 11078), (1910, 10962), (2030, 10314), (2292, 9135), (2436, 8595), (2610, 8022), (2674, 7830), (2865, 7308), (3045, 6876), (3132, 6685), (3438, 6090), (3654, 5730), (3780, 5539), (3820, 5481), (3915, 5348), (4011, 5220), (4060, 5157)]