20696760

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 192

約数和(自身を含む): 79073280

約数和(自身を除く): 58376520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 56, 60, 63, 70, 72, 84, 86, 90, 105, 120, 126, 129, 140, 168, 172, 180, 191, 210, 215, 252, 258, 280, 301, 315, 344, 360, 382, 387, 420, 430, 504, 516, 573, 602, 630, 645, 764, 774, 840, 860, 903, 955, 1032, 1146, 1204, 1260, 1290, 1337, 1505, 1528, 1548, 1719, 1720, 1806, 1910, 1935, 2292, 2408, 2520, 2580, 2674, 2709, 2865, 3010, 3096, 3438, 3612, 3820, 3870, 4011, 4515, 4584, 5160, 5348, 5418, 5730, 6020, 6685, 6876, 7224, 7640, 7740, 8022, 8213, 8595, 9030, 10696, 10836, 11460, 12033, 12040, 13370, 13545, 13752, 15480, 16044, 16426, 17190, 18060, 20055, 21672, 22920, 24066, 24639, 26740, 27090, 32088, 32852, 34380, 36120, 40110, 41065, 48132, 49278, 53480, 54180, 57491, 60165, 65704, 68760, 73917, 80220, 82130, 96264, 98556, 108360, 114982, 120330, 123195, 147834, 160440, 164260, 172473, 197112, 229964, 240660, 246390, 287455, 295668, 328520, 344946, 369585, 459928, 481320, 492780, 517419, 574910, 591336, 689892, 739170, 862365, 985560, 1034838, 1149820, 1379784, 1478340, 1724730, 2069676, 2299640, 2587095, 2956680, 3449460, 4139352, 5174190, 6898920, 10348380, 20696760]

約数ペア:

[(1, 20696760), (2, 10348380), (3, 6898920), (4, 5174190), (5, 4139352), (6, 3449460), (7, 2956680), (8, 2587095), (9, 2299640), (10, 2069676), (12, 1724730), (14, 1478340), (15, 1379784), (18, 1149820), (20, 1034838), (21, 985560), (24, 862365), (28, 739170), (30, 689892), (35, 591336), (36, 574910), (40, 517419), (42, 492780), (43, 481320), (45, 459928), (56, 369585), (60, 344946), (63, 328520), (70, 295668), (72, 287455), (84, 246390), (86, 240660), (90, 229964), (105, 197112), (120, 172473), (126, 164260), (129, 160440), (140, 147834), (168, 123195), (172, 120330), (180, 114982), (191, 108360), (210, 98556), (215, 96264), (252, 82130), (258, 80220), (280, 73917), (301, 68760), (315, 65704), (344, 60165), (360, 57491), (382, 54180), (387, 53480), (420, 49278), (430, 48132), (504, 41065), (516, 40110), (573, 36120), (602, 34380), (630, 32852), (645, 32088), (764, 27090), (774, 26740), (840, 24639), (860, 24066), (903, 22920), (955, 21672), (1032, 20055), (1146, 18060), (1204, 17190), (1260, 16426), (1290, 16044), (1337, 15480), (1505, 13752), (1528, 13545), (1548, 13370), (1719, 12040), (1720, 12033), (1806, 11460), (1910, 10836), (1935, 10696), (2292, 9030), (2408, 8595), (2520, 8213), (2580, 8022), (2674, 7740), (2709, 7640), (2865, 7224), (3010, 6876), (3096, 6685), (3438, 6020), (3612, 5730), (3820, 5418), (3870, 5348), (4011, 5160), (4515, 4584)]