20177697420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{463}}^1\times {\mathrm{1229}}^1$

素因数の和:1904

約数の個数: 144

約数和(自身を含む): 61699397760

約数和(自身を除く): 41521700340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 463, 591, 788, 926, 985, 1182, 1229, 1389, 1773, 1852, 1970, 2315, 2364, 2458, 2778, 2955, 3546, 3687, 3940, 4167, 4630, 4916, 5556, 5910, 6145, 6945, 7092, 7374, 8334, 8865, 9260, 11061, 11820, 12290, 13890, 14748, 16668, 17730, 18435, 20835, 22122, 24580, 27780, 35460, 36870, 41670, 44244, 55305, 73740, 83340, 91211, 110610, 182422, 221220, 242113, 273633, 364844, 456055, 484226, 547266, 569027, 726339, 820899, 912110, 968452, 1094532, 1138054, 1210565, 1368165, 1452678, 1641798, 1707081, 1824220, 2179017, 2276108, 2421130, 2736330, 2845135, 2905356, 3283596, 3414162, 3631695, 4104495, 4358034, 4842260, 5121243, 5472660, 5690270, 6828324, 7263390, 8208990, 8535405, 8716068, 10242486, 10895085, 11380540, 14526780, 16417980, 17070810, 20484972, 21790170, 25606215, 34141620, 43580340, 51212430, 102424860, 112098319, 224196638, 336294957, 448393276, 560491595, 672589914, 1008884871, 1120983190, 1345179828, 1681474785, 2017769742, 2241966380, 3362949570, 4035539484, 5044424355, 6725899140, 10088848710, 20177697420]

約数ペア:

[(1, 20177697420), (2, 10088848710), (3, 6725899140), (4, 5044424355), (5, 4035539484), (6, 3362949570), (9, 2241966380), (10, 2017769742), (12, 1681474785), (15, 1345179828), (18, 1120983190), (20, 1008884871), (30, 672589914), (36, 560491595), (45, 448393276), (60, 336294957), (90, 224196638), (180, 112098319), (197, 102424860), (394, 51212430), (463, 43580340), (591, 34141620), (788, 25606215), (926, 21790170), (985, 20484972), (1182, 17070810), (1229, 16417980), (1389, 14526780), (1773, 11380540), (1852, 10895085), (1970, 10242486), (2315, 8716068), (2364, 8535405), (2458, 8208990), (2778, 7263390), (2955, 6828324), (3546, 5690270), (3687, 5472660), (3940, 5121243), (4167, 4842260), (4630, 4358034), (4916, 4104495), (5556, 3631695), (5910, 3414162), (6145, 3283596), (6945, 2905356), (7092, 2845135), (7374, 2736330), (8334, 2421130), (8865, 2276108), (9260, 2179017), (11061, 1824220), (11820, 1707081), (12290, 1641798), (13890, 1452678), (14748, 1368165), (16668, 1210565), (17730, 1138054), (18435, 1094532), (20835, 968452), (22122, 912110), (24580, 820899), (27780, 726339), (35460, 569027), (36870, 547266), (41670, 484226), (44244, 456055), (55305, 364844), (73740, 273633), (83340, 242113), (91211, 221220), (110610, 182422)]