81867720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:703

約数の個数: 128

約数和(自身を含む): 270864000

約数和(自身を除く): 188996280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 109, 110, 120, 132, 165, 218, 220, 264, 327, 330, 436, 440, 545, 569, 654, 660, 872, 1090, 1138, 1199, 1308, 1320, 1635, 1707, 2180, 2276, 2398, 2616, 2845, 3270, 3414, 3597, 4360, 4552, 4796, 5690, 5995, 6259, 6540, 6828, 7194, 8535, 9592, 11380, 11990, 12518, 13080, 13656, 14388, 17070, 17985, 18777, 22760, 23980, 25036, 28776, 31295, 34140, 35970, 37554, 47960, 50072, 62021, 62590, 68280, 71940, 75108, 93885, 124042, 125180, 143880, 150216, 186063, 187770, 248084, 250360, 310105, 372126, 375540, 496168, 620210, 682231, 744252, 751080, 930315, 1240420, 1364462, 1488504, 1860630, 2046693, 2480840, 2728924, 3411155, 3721260, 4093386, 5457848, 6822310, 7442520, 8186772, 10233465, 13644620, 16373544, 20466930, 27289240, 40933860, 81867720]

約数ペア:

[(1, 81867720), (2, 40933860), (3, 27289240), (4, 20466930), (5, 16373544), (6, 13644620), (8, 10233465), (10, 8186772), (11, 7442520), (12, 6822310), (15, 5457848), (20, 4093386), (22, 3721260), (24, 3411155), (30, 2728924), (33, 2480840), (40, 2046693), (44, 1860630), (55, 1488504), (60, 1364462), (66, 1240420), (88, 930315), (109, 751080), (110, 744252), (120, 682231), (132, 620210), (165, 496168), (218, 375540), (220, 372126), (264, 310105), (327, 250360), (330, 248084), (436, 187770), (440, 186063), (545, 150216), (569, 143880), (654, 125180), (660, 124042), (872, 93885), (1090, 75108), (1138, 71940), (1199, 68280), (1308, 62590), (1320, 62021), (1635, 50072), (1707, 47960), (2180, 37554), (2276, 35970), (2398, 34140), (2616, 31295), (2845, 28776), (3270, 25036), (3414, 23980), (3597, 22760), (4360, 18777), (4552, 17985), (4796, 17070), (5690, 14388), (5995, 13656), (6259, 13080), (6540, 12518), (6828, 11990), (7194, 11380), (8535, 9592)]