20199960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5101}}^1$

素因数の和:5129

約数の個数: 96

約数和(自身を含む): 71632080

約数和(自身を除く): 51432120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5101, 10202, 15303, 20404, 25505, 30606, 40808, 45909, 51010, 56111, 61212, 76515, 91818, 102020, 112222, 122424, 153030, 168333, 183636, 204040, 224444, 229545, 280555, 306060, 336666, 367272, 448888, 459090, 504999, 561110, 612120, 673332, 841665, 918180, 1009998, 1122220, 1346664, 1683330, 1836360, 2019996, 2244440, 2524995, 3366660, 4039992, 5049990, 6733320, 10099980, 20199960]

約数ペア:

[(1, 20199960), (2, 10099980), (3, 6733320), (4, 5049990), (5, 4039992), (6, 3366660), (8, 2524995), (9, 2244440), (10, 2019996), (11, 1836360), (12, 1683330), (15, 1346664), (18, 1122220), (20, 1009998), (22, 918180), (24, 841665), (30, 673332), (33, 612120), (36, 561110), (40, 504999), (44, 459090), (45, 448888), (55, 367272), (60, 336666), (66, 306060), (72, 280555), (88, 229545), (90, 224444), (99, 204040), (110, 183636), (120, 168333), (132, 153030), (165, 122424), (180, 112222), (198, 102020), (220, 91818), (264, 76515), (330, 61212), (360, 56111), (396, 51010), (440, 45909), (495, 40808), (660, 30606), (792, 25505), (990, 20404), (1320, 15303), (1980, 10202), (3960, 5101)]