20966760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 68796000

約数和(自身を除く): 47829240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 139, 180, 278, 360, 417, 419, 556, 695, 834, 838, 1112, 1251, 1257, 1390, 1668, 1676, 2085, 2095, 2502, 2514, 2780, 3336, 3352, 3771, 4170, 4190, 5004, 5028, 5560, 6255, 6285, 7542, 8340, 8380, 10008, 10056, 12510, 12570, 15084, 16680, 16760, 18855, 25020, 25140, 30168, 37710, 50040, 50280, 58241, 75420, 116482, 150840, 174723, 232964, 291205, 349446, 465928, 524169, 582410, 698892, 873615, 1048338, 1164820, 1397784, 1747230, 2096676, 2329640, 2620845, 3494460, 4193352, 5241690, 6988920, 10483380, 20966760]

約数ペア:

[(1, 20966760), (2, 10483380), (3, 6988920), (4, 5241690), (5, 4193352), (6, 3494460), (8, 2620845), (9, 2329640), (10, 2096676), (12, 1747230), (15, 1397784), (18, 1164820), (20, 1048338), (24, 873615), (30, 698892), (36, 582410), (40, 524169), (45, 465928), (60, 349446), (72, 291205), (90, 232964), (120, 174723), (139, 150840), (180, 116482), (278, 75420), (360, 58241), (417, 50280), (419, 50040), (556, 37710), (695, 30168), (834, 25140), (838, 25020), (1112, 18855), (1251, 16760), (1257, 16680), (1390, 15084), (1668, 12570), (1676, 12510), (2085, 10056), (2095, 10008), (2502, 8380), (2514, 8340), (2780, 7542), (3336, 6285), (3352, 6255), (3771, 5560), (4170, 5028), (4190, 5004)]