21078360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:722

約数の個数: 128

約数和(自身を含む): 72792000

約数和(自身を除く): 51713640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 673, 696, 783, 870, 1044, 1080, 1160, 1305, 1346, 1566, 1740, 2019, 2088, 2610, 2692, 3132, 3365, 3480, 3915, 4038, 5220, 5384, 6057, 6264, 6730, 7830, 8076, 10095, 10440, 12114, 13460, 15660, 16152, 18171, 19517, 20190, 24228, 26920, 30285, 31320, 36342, 39034, 40380, 48456, 58551, 60570, 72684, 78068, 80760, 90855, 97585, 117102, 121140, 145368, 156136, 175653, 181710, 195170, 234204, 242280, 292755, 351306, 363420, 390340, 468408, 526959, 585510, 702612, 726840, 780680, 878265, 1053918, 1171020, 1405224, 1756530, 2107836, 2342040, 2634795, 3513060, 4215672, 5269590, 7026120, 10539180, 21078360]

約数ペア:

[(1, 21078360), (2, 10539180), (3, 7026120), (4, 5269590), (5, 4215672), (6, 3513060), (8, 2634795), (9, 2342040), (10, 2107836), (12, 1756530), (15, 1405224), (18, 1171020), (20, 1053918), (24, 878265), (27, 780680), (29, 726840), (30, 702612), (36, 585510), (40, 526959), (45, 468408), (54, 390340), (58, 363420), (60, 351306), (72, 292755), (87, 242280), (90, 234204), (108, 195170), (116, 181710), (120, 175653), (135, 156136), (145, 145368), (174, 121140), (180, 117102), (216, 97585), (232, 90855), (261, 80760), (270, 78068), (290, 72684), (348, 60570), (360, 58551), (435, 48456), (522, 40380), (540, 39034), (580, 36342), (673, 31320), (696, 30285), (783, 26920), (870, 24228), (1044, 20190), (1080, 19517), (1160, 18171), (1305, 16152), (1346, 15660), (1566, 13460), (1740, 12114), (2019, 10440), (2088, 10095), (2610, 8076), (2692, 7830), (3132, 6730), (3365, 6264), (3480, 6057), (3915, 5384), (4038, 5220)]