20178180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 70963200

約数和(自身を除く): 50785020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 43, 44, 45, 54, 55, 60, 66, 79, 86, 90, 99, 108, 110, 129, 132, 135, 158, 165, 172, 180, 198, 215, 220, 237, 258, 270, 297, 316, 330, 387, 395, 396, 430, 473, 474, 495, 516, 540, 594, 645, 660, 711, 774, 790, 860, 869, 946, 948, 990, 1161, 1185, 1188, 1290, 1419, 1422, 1485, 1548, 1580, 1738, 1892, 1935, 1980, 2133, 2322, 2365, 2370, 2580, 2607, 2838, 2844, 2970, 3397, 3476, 3555, 3870, 4257, 4266, 4345, 4644, 4730, 4740, 5214, 5676, 5805, 5940, 6794, 7095, 7110, 7740, 7821, 8514, 8532, 8690, 9460, 10191, 10428, 10665, 11610, 12771, 13035, 13588, 14190, 14220, 15642, 16985, 17028, 17380, 20382, 21285, 21330, 23220, 23463, 25542, 26070, 28380, 30573, 31284, 33970, 37367, 39105, 40764, 42570, 42660, 46926, 50955, 51084, 52140, 61146, 63855, 67940, 74734, 78210, 85140, 91719, 93852, 101910, 112101, 117315, 122292, 127710, 149468, 152865, 156420, 183438, 186835, 203820, 224202, 234630, 255420, 305730, 336303, 366876, 373670, 448404, 458595, 469260, 560505, 611460, 672606, 747340, 917190, 1008909, 1121010, 1345212, 1681515, 1834380, 2017818, 2242020, 3363030, 4035636, 5044545, 6726060, 10089090, 20178180]

約数ペア:

[(1, 20178180), (2, 10089090), (3, 6726060), (4, 5044545), (5, 4035636), (6, 3363030), (9, 2242020), (10, 2017818), (11, 1834380), (12, 1681515), (15, 1345212), (18, 1121010), (20, 1008909), (22, 917190), (27, 747340), (30, 672606), (33, 611460), (36, 560505), (43, 469260), (44, 458595), (45, 448404), (54, 373670), (55, 366876), (60, 336303), (66, 305730), (79, 255420), (86, 234630), (90, 224202), (99, 203820), (108, 186835), (110, 183438), (129, 156420), (132, 152865), (135, 149468), (158, 127710), (165, 122292), (172, 117315), (180, 112101), (198, 101910), (215, 93852), (220, 91719), (237, 85140), (258, 78210), (270, 74734), (297, 67940), (316, 63855), (330, 61146), (387, 52140), (395, 51084), (396, 50955), (430, 46926), (473, 42660), (474, 42570), (495, 40764), (516, 39105), (540, 37367), (594, 33970), (645, 31284), (660, 30573), (711, 28380), (774, 26070), (790, 25542), (860, 23463), (869, 23220), (946, 21330), (948, 21285), (990, 20382), (1161, 17380), (1185, 17028), (1188, 16985), (1290, 15642), (1419, 14220), (1422, 14190), (1485, 13588), (1548, 13035), (1580, 12771), (1738, 11610), (1892, 10665), (1935, 10428), (1980, 10191), (2133, 9460), (2322, 8690), (2365, 8532), (2370, 8514), (2580, 7821), (2607, 7740), (2838, 7110), (2844, 7095), (2970, 6794), (3397, 5940), (3476, 5805), (3555, 5676), (3870, 5214), (4257, 4740), (4266, 4730), (4345, 4644)]