81824820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:318

約数の個数: 192

約数和(自身を含む): 290304000

約数和(自身を除く): 208479180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 89, 105, 110, 132, 140, 154, 165, 178, 199, 210, 220, 231, 267, 308, 330, 356, 385, 398, 420, 445, 462, 534, 597, 623, 660, 770, 796, 890, 924, 979, 995, 1068, 1155, 1194, 1246, 1335, 1393, 1540, 1780, 1869, 1958, 1990, 2189, 2310, 2388, 2492, 2670, 2786, 2937, 2985, 3115, 3738, 3916, 3980, 4179, 4378, 4620, 4895, 5340, 5572, 5874, 5970, 6230, 6567, 6853, 6965, 7476, 8358, 8756, 9345, 9790, 10945, 11748, 11940, 12460, 13134, 13706, 13930, 14685, 15323, 16716, 17711, 18690, 19580, 20559, 20895, 21890, 26268, 27412, 27860, 29370, 30646, 32835, 34265, 35422, 37380, 41118, 41790, 43780, 45969, 53133, 58740, 61292, 65670, 68530, 70844, 76615, 82236, 83580, 88555, 91938, 102795, 106266, 123977, 131340, 137060, 153230, 177110, 183876, 194821, 205590, 212532, 229845, 247954, 265665, 306460, 354220, 371931, 389642, 411180, 459690, 495908, 531330, 584463, 619885, 743862, 779284, 919380, 974105, 1062660, 1168926, 1239770, 1363747, 1487724, 1859655, 1948210, 2337852, 2479540, 2727494, 2922315, 3719310, 3896420, 4091241, 5454988, 5844630, 6818735, 7438620, 8182482, 11689260, 13637470, 16364964, 20456205, 27274940, 40912410, 81824820]

約数ペア:

[(1, 81824820), (2, 40912410), (3, 27274940), (4, 20456205), (5, 16364964), (6, 13637470), (7, 11689260), (10, 8182482), (11, 7438620), (12, 6818735), (14, 5844630), (15, 5454988), (20, 4091241), (21, 3896420), (22, 3719310), (28, 2922315), (30, 2727494), (33, 2479540), (35, 2337852), (42, 1948210), (44, 1859655), (55, 1487724), (60, 1363747), (66, 1239770), (70, 1168926), (77, 1062660), (84, 974105), (89, 919380), (105, 779284), (110, 743862), (132, 619885), (140, 584463), (154, 531330), (165, 495908), (178, 459690), (199, 411180), (210, 389642), (220, 371931), (231, 354220), (267, 306460), (308, 265665), (330, 247954), (356, 229845), (385, 212532), (398, 205590), (420, 194821), (445, 183876), (462, 177110), (534, 153230), (597, 137060), (623, 131340), (660, 123977), (770, 106266), (796, 102795), (890, 91938), (924, 88555), (979, 83580), (995, 82236), (1068, 76615), (1155, 70844), (1194, 68530), (1246, 65670), (1335, 61292), (1393, 58740), (1540, 53133), (1780, 45969), (1869, 43780), (1958, 41790), (1990, 41118), (2189, 37380), (2310, 35422), (2388, 34265), (2492, 32835), (2670, 30646), (2786, 29370), (2937, 27860), (2985, 27412), (3115, 26268), (3738, 21890), (3916, 20895), (3980, 20559), (4179, 19580), (4378, 18690), (4620, 17711), (4895, 16716), (5340, 15323), (5572, 14685), (5874, 13930), (5970, 13706), (6230, 13134), (6567, 12460), (6853, 11940), (6965, 11748), (7476, 10945), (8358, 9790), (8756, 9345)]