51178140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21871}}^1$

素因数の和:21899

約数の個数: 72

約数和(自身を含む): 167189568

約数和(自身を除く): 116011428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 21871, 43742, 65613, 87484, 109355, 131226, 196839, 218710, 262452, 284323, 328065, 393678, 437420, 568646, 656130, 787356, 852969, 984195, 1137292, 1312260, 1421615, 1705938, 1968390, 2558907, 2843230, 3411876, 3936780, 4264845, 5117814, 5686460, 8529690, 10235628, 12794535, 17059380, 25589070, 51178140]

約数ペア:

[(1, 51178140), (2, 25589070), (3, 17059380), (4, 12794535), (5, 10235628), (6, 8529690), (9, 5686460), (10, 5117814), (12, 4264845), (13, 3936780), (15, 3411876), (18, 2843230), (20, 2558907), (26, 1968390), (30, 1705938), (36, 1421615), (39, 1312260), (45, 1137292), (52, 984195), (60, 852969), (65, 787356), (78, 656130), (90, 568646), (117, 437420), (130, 393678), (156, 328065), (180, 284323), (195, 262452), (234, 218710), (260, 196839), (390, 131226), (468, 109355), (585, 87484), (780, 65613), (1170, 43742), (2340, 21871)]