18906840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1857

約数の個数: 96

約数和(自身を含む): 63601200

約数和(自身を除く): 44694360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 1811, 2088, 2610, 3480, 3622, 5220, 5433, 7244, 9055, 10440, 10866, 14488, 16299, 18110, 21732, 27165, 32598, 36220, 43464, 52519, 54330, 65196, 72440, 81495, 105038, 108660, 130392, 157557, 162990, 210076, 217320, 262595, 315114, 325980, 420152, 472671, 525190, 630228, 651960, 787785, 945342, 1050380, 1260456, 1575570, 1890684, 2100760, 2363355, 3151140, 3781368, 4726710, 6302280, 9453420, 18906840]

約数ペア:

[(1, 18906840), (2, 9453420), (3, 6302280), (4, 4726710), (5, 3781368), (6, 3151140), (8, 2363355), (9, 2100760), (10, 1890684), (12, 1575570), (15, 1260456), (18, 1050380), (20, 945342), (24, 787785), (29, 651960), (30, 630228), (36, 525190), (40, 472671), (45, 420152), (58, 325980), (60, 315114), (72, 262595), (87, 217320), (90, 210076), (116, 162990), (120, 157557), (145, 130392), (174, 108660), (180, 105038), (232, 81495), (261, 72440), (290, 65196), (348, 54330), (360, 52519), (435, 43464), (522, 36220), (580, 32598), (696, 27165), (870, 21732), (1044, 18110), (1160, 16299), (1305, 14488), (1740, 10866), (1811, 10440), (2088, 9055), (2610, 7244), (3480, 5433), (3622, 5220)]