81395160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:438

約数の個数: 256

約数和(自身を含む): 318504960

約数和(自身を除く): 237109800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 23, 24, 28, 30, 33, 35, 40, 42, 44, 46, 55, 56, 60, 66, 69, 70, 77, 84, 88, 92, 105, 110, 115, 120, 132, 138, 140, 154, 161, 165, 168, 184, 210, 220, 230, 231, 253, 264, 276, 280, 308, 322, 330, 345, 383, 385, 420, 440, 460, 462, 483, 506, 552, 616, 644, 660, 690, 759, 766, 770, 805, 840, 920, 924, 966, 1012, 1149, 1155, 1265, 1288, 1320, 1380, 1518, 1532, 1540, 1610, 1771, 1848, 1915, 1932, 2024, 2298, 2310, 2415, 2530, 2681, 2760, 3036, 3064, 3080, 3220, 3542, 3795, 3830, 3864, 4213, 4596, 4620, 4830, 5060, 5313, 5362, 5745, 6072, 6440, 7084, 7590, 7660, 8043, 8426, 8809, 8855, 9192, 9240, 9660, 10120, 10626, 10724, 11490, 12639, 13405, 14168, 15180, 15320, 16086, 16852, 17618, 17710, 19320, 21065, 21252, 21448, 22980, 25278, 26427, 26565, 26810, 29491, 30360, 32172, 33704, 35236, 35420, 40215, 42130, 42504, 44045, 45960, 50556, 52854, 53130, 53620, 58982, 61663, 63195, 64344, 70472, 70840, 80430, 84260, 88090, 88473, 96899, 101112, 105708, 106260, 107240, 117964, 123326, 126390, 132135, 147455, 160860, 168520, 176180, 176946, 184989, 193798, 211416, 212520, 235928, 246652, 252780, 264270, 290697, 294910, 308315, 321720, 352360, 353892, 369978, 387596, 442365, 484495, 493304, 505560, 528540, 581394, 589820, 616630, 678293, 707784, 739956, 775192, 884730, 924945, 968990, 1057080, 1162788, 1179640, 1233260, 1356586, 1453485, 1479912, 1769460, 1849890, 1937980, 2034879, 2325576, 2466520, 2713172, 2906970, 3391465, 3538920, 3699780, 3875960, 4069758, 5426344, 5813940, 6782930, 7399560, 8139516, 10174395, 11627880, 13565860, 16279032, 20348790, 27131720, 40697580, 81395160]

約数ペア:

[(1, 81395160), (2, 40697580), (3, 27131720), (4, 20348790), (5, 16279032), (6, 13565860), (7, 11627880), (8, 10174395), (10, 8139516), (11, 7399560), (12, 6782930), (14, 5813940), (15, 5426344), (20, 4069758), (21, 3875960), (22, 3699780), (23, 3538920), (24, 3391465), (28, 2906970), (30, 2713172), (33, 2466520), (35, 2325576), (40, 2034879), (42, 1937980), (44, 1849890), (46, 1769460), (55, 1479912), (56, 1453485), (60, 1356586), (66, 1233260), (69, 1179640), (70, 1162788), (77, 1057080), (84, 968990), (88, 924945), (92, 884730), (105, 775192), (110, 739956), (115, 707784), (120, 678293), (132, 616630), (138, 589820), (140, 581394), (154, 528540), (161, 505560), (165, 493304), (168, 484495), (184, 442365), (210, 387596), (220, 369978), (230, 353892), (231, 352360), (253, 321720), (264, 308315), (276, 294910), (280, 290697), (308, 264270), (322, 252780), (330, 246652), (345, 235928), (383, 212520), (385, 211416), (420, 193798), (440, 184989), (460, 176946), (462, 176180), (483, 168520), (506, 160860), (552, 147455), (616, 132135), (644, 126390), (660, 123326), (690, 117964), (759, 107240), (766, 106260), (770, 105708), (805, 101112), (840, 96899), (920, 88473), (924, 88090), (966, 84260), (1012, 80430), (1149, 70840), (1155, 70472), (1265, 64344), (1288, 63195), (1320, 61663), (1380, 58982), (1518, 53620), (1532, 53130), (1540, 52854), (1610, 50556), (1771, 45960), (1848, 44045), (1915, 42504), (1932, 42130), (2024, 40215), (2298, 35420), (2310, 35236), (2415, 33704), (2530, 32172), (2681, 30360), (2760, 29491), (3036, 26810), (3064, 26565), (3080, 26427), (3220, 25278), (3542, 22980), (3795, 21448), (3830, 21252), (3864, 21065), (4213, 19320), (4596, 17710), (4620, 17618), (4830, 16852), (5060, 16086), (5313, 15320), (5362, 15180), (5745, 14168), (6072, 13405), (6440, 12639), (7084, 11490), (7590, 10724), (7660, 10626), (8043, 10120), (8426, 9660), (8809, 9240), (8855, 9192)]