20647080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1$

素因数の和:791

約数の個数: 96

約数和(自身を含む): 68009760

約数和(自身を除く): 47362680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 83, 90, 120, 166, 180, 249, 332, 360, 415, 498, 664, 691, 747, 830, 996, 1245, 1382, 1494, 1660, 1992, 2073, 2490, 2764, 2988, 3320, 3455, 3735, 4146, 4980, 5528, 5976, 6219, 6910, 7470, 8292, 9960, 10365, 12438, 13820, 14940, 16584, 20730, 24876, 27640, 29880, 31095, 41460, 49752, 57353, 62190, 82920, 114706, 124380, 172059, 229412, 248760, 286765, 344118, 458824, 516177, 573530, 688236, 860295, 1032354, 1147060, 1376472, 1720590, 2064708, 2294120, 2580885, 3441180, 4129416, 5161770, 6882360, 10323540, 20647080]

約数ペア:

[(1, 20647080), (2, 10323540), (3, 6882360), (4, 5161770), (5, 4129416), (6, 3441180), (8, 2580885), (9, 2294120), (10, 2064708), (12, 1720590), (15, 1376472), (18, 1147060), (20, 1032354), (24, 860295), (30, 688236), (36, 573530), (40, 516177), (45, 458824), (60, 344118), (72, 286765), (83, 248760), (90, 229412), (120, 172059), (166, 124380), (180, 114706), (249, 82920), (332, 62190), (360, 57353), (415, 49752), (498, 41460), (664, 31095), (691, 29880), (747, 27640), (830, 24876), (996, 20730), (1245, 16584), (1382, 14940), (1494, 13820), (1660, 12438), (1992, 10365), (2073, 9960), (2490, 8292), (2764, 7470), (2988, 6910), (3320, 6219), (3455, 5976), (3735, 5528), (4146, 4980)]