81162180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 271252800

約数和(自身を除く): 190090620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 179, 180, 198, 220, 229, 330, 358, 396, 458, 495, 537, 660, 687, 716, 895, 916, 990, 1074, 1145, 1374, 1611, 1790, 1969, 1980, 2061, 2148, 2290, 2519, 2685, 2748, 3222, 3435, 3580, 3938, 4122, 4580, 5038, 5370, 5907, 6444, 6870, 7557, 7876, 8055, 8244, 9845, 10076, 10305, 10740, 11814, 12595, 13740, 15114, 16110, 17721, 19690, 20610, 22671, 23628, 25190, 29535, 30228, 32220, 35442, 37785, 39380, 40991, 41220, 45342, 50380, 59070, 70884, 75570, 81982, 88605, 90684, 113355, 118140, 122973, 151140, 163964, 177210, 204955, 226710, 245946, 354420, 368919, 409910, 450901, 453420, 491892, 614865, 737838, 819820, 901802, 1229730, 1352703, 1475676, 1803604, 1844595, 2254505, 2459460, 2705406, 3689190, 4058109, 4509010, 5410812, 6763515, 7378380, 8116218, 9018020, 13527030, 16232436, 20290545, 27054060, 40581090, 81162180]

約数ペア:

[(1, 81162180), (2, 40581090), (3, 27054060), (4, 20290545), (5, 16232436), (6, 13527030), (9, 9018020), (10, 8116218), (11, 7378380), (12, 6763515), (15, 5410812), (18, 4509010), (20, 4058109), (22, 3689190), (30, 2705406), (33, 2459460), (36, 2254505), (44, 1844595), (45, 1803604), (55, 1475676), (60, 1352703), (66, 1229730), (90, 901802), (99, 819820), (110, 737838), (132, 614865), (165, 491892), (179, 453420), (180, 450901), (198, 409910), (220, 368919), (229, 354420), (330, 245946), (358, 226710), (396, 204955), (458, 177210), (495, 163964), (537, 151140), (660, 122973), (687, 118140), (716, 113355), (895, 90684), (916, 88605), (990, 81982), (1074, 75570), (1145, 70884), (1374, 59070), (1611, 50380), (1790, 45342), (1969, 41220), (1980, 40991), (2061, 39380), (2148, 37785), (2290, 35442), (2519, 32220), (2685, 30228), (2748, 29535), (3222, 25190), (3435, 23628), (3580, 22671), (3938, 20610), (4122, 19690), (4580, 17721), (5038, 16110), (5370, 15114), (5907, 13740), (6444, 12595), (6870, 11814), (7557, 10740), (7876, 10305), (8055, 10076), (8244, 9845)]