81693480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:535

約数の個数: 128

約数和(自身を含む): 269568000

約数和(自身を除く): 187874520

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, 110, 120, 132, 165, 199, 220, 264, 311, 330, 398, 440, 597, 622, 660, 796, 933, 995, 1194, 1244, 1320, 1555, 1592, 1866, 1990, 2189, 2388, 2488, 2985, 3110, 3421, 3732, 3980, 4378, 4665, 4776, 5970, 6220, 6567, 6842, 7464, 7960, 8756, 9330, 10263, 10945, 11940, 12440, 13134, 13684, 17105, 17512, 18660, 20526, 21890, 23880, 26268, 27368, 32835, 34210, 37320, 41052, 43780, 51315, 52536, 61889, 65670, 68420, 82104, 87560, 102630, 123778, 131340, 136840, 185667, 205260, 247556, 262680, 309445, 371334, 410520, 495112, 618890, 680779, 742668, 928335, 1237780, 1361558, 1485336, 1856670, 2042337, 2475560, 2723116, 3403895, 3713340, 4084674, 5446232, 6807790, 7426680, 8169348, 10211685, 13615580, 16338696, 20423370, 27231160, 40846740, 81693480]

約数ペア:

[(1, 81693480), (2, 40846740), (3, 27231160), (4, 20423370), (5, 16338696), (6, 13615580), (8, 10211685), (10, 8169348), (11, 7426680), (12, 6807790), (15, 5446232), (20, 4084674), (22, 3713340), (24, 3403895), (30, 2723116), (33, 2475560), (40, 2042337), (44, 1856670), (55, 1485336), (60, 1361558), (66, 1237780), (88, 928335), (110, 742668), (120, 680779), (132, 618890), (165, 495112), (199, 410520), (220, 371334), (264, 309445), (311, 262680), (330, 247556), (398, 205260), (440, 185667), (597, 136840), (622, 131340), (660, 123778), (796, 102630), (933, 87560), (995, 82104), (1194, 68420), (1244, 65670), (1320, 61889), (1555, 52536), (1592, 51315), (1866, 43780), (1990, 41052), (2189, 37320), (2388, 34210), (2488, 32835), (2985, 27368), (3110, 26268), (3421, 23880), (3732, 21890), (3980, 20526), (4378, 18660), (4665, 17512), (4776, 17105), (5970, 13684), (6220, 13134), (6567, 12440), (6842, 11940), (7464, 10945), (7960, 10263), (8756, 9330)]