81619560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20611}}^1$

素因数の和:20639

約数の個数: 96

約数和(自身を含む): 289392480

約数和(自身を除く): 207772920

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, 20611, 41222, 61833, 82444, 103055, 123666, 164888, 185499, 206110, 226721, 247332, 309165, 370998, 412220, 453442, 494664, 618330, 680163, 741996, 824440, 906884, 927495, 1133605, 1236660, 1360326, 1483992, 1813768, 1854990, 2040489, 2267210, 2473320, 2720652, 3400815, 3709980, 4080978, 4534420, 5441304, 6801630, 7419960, 8161956, 9068840, 10202445, 13603260, 16323912, 20404890, 27206520, 40809780, 81619560]

約数ペア:

[(1, 81619560), (2, 40809780), (3, 27206520), (4, 20404890), (5, 16323912), (6, 13603260), (8, 10202445), (9, 9068840), (10, 8161956), (11, 7419960), (12, 6801630), (15, 5441304), (18, 4534420), (20, 4080978), (22, 3709980), (24, 3400815), (30, 2720652), (33, 2473320), (36, 2267210), (40, 2040489), (44, 1854990), (45, 1813768), (55, 1483992), (60, 1360326), (66, 1236660), (72, 1133605), (88, 927495), (90, 906884), (99, 824440), (110, 741996), (120, 680163), (132, 618330), (165, 494664), (180, 453442), (198, 412220), (220, 370998), (264, 309165), (330, 247332), (360, 226721), (396, 206110), (440, 185499), (495, 164888), (660, 123666), (792, 103055), (990, 82444), (1320, 61833), (1980, 41222), (3960, 20611)]