81160380

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 240

約数和(自身を含む): 308822976

約数和(自身を除く): 227662596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 81, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 153, 162, 170, 180, 189, 204, 210, 238, 252, 255, 270, 306, 315, 324, 340, 357, 378, 405, 420, 421, 459, 476, 510, 540, 567, 595, 612, 630, 714, 756, 765, 810, 842, 918, 945, 1020, 1071, 1134, 1190, 1260, 1263, 1377, 1428, 1530, 1620, 1684, 1785, 1836, 1890, 2105, 2142, 2268, 2295, 2380, 2526, 2754, 2835, 2947, 3060, 3213, 3570, 3780, 3789, 4210, 4284, 4590, 5052, 5355, 5508, 5670, 5894, 6315, 6426, 6885, 7140, 7157, 7578, 8420, 8841, 9180, 9639, 10710, 11340, 11367, 11788, 12630, 12852, 13770, 14314, 14735, 15156, 16065, 17682, 18945, 19278, 21420, 21471, 22734, 25260, 26523, 27540, 28628, 29470, 32130, 34101, 35364, 35785, 37890, 38556, 42942, 44205, 45468, 48195, 50099, 53046, 56835, 58940, 64260, 64413, 68202, 71570, 75780, 79569, 85884, 88410, 96390, 100198, 106092, 107355, 113670, 128826, 132615, 136404, 143140, 150297, 159138, 170505, 176820, 192780, 193239, 200396, 214710, 227340, 238707, 250495, 257652, 265230, 300594, 318276, 322065, 341010, 386478, 397845, 429420, 450891, 477414, 500990, 530460, 579717, 601188, 644130, 682020, 751485, 772956, 795690, 901782, 954828, 966195, 1001980, 1159434, 1193535, 1288260, 1352673, 1502970, 1591380, 1803564, 1932390, 2254455, 2318868, 2387070, 2705346, 2898585, 3005940, 3864780, 4058019, 4508910, 4774140, 5410692, 5797170, 6763365, 8116038, 9017820, 11594340, 13526730, 16232076, 20290095, 27053460, 40580190, 81160380]

約数ペア:

[(1, 81160380), (2, 40580190), (3, 27053460), (4, 20290095), (5, 16232076), (6, 13526730), (7, 11594340), (9, 9017820), (10, 8116038), (12, 6763365), (14, 5797170), (15, 5410692), (17, 4774140), (18, 4508910), (20, 4058019), (21, 3864780), (27, 3005940), (28, 2898585), (30, 2705346), (34, 2387070), (35, 2318868), (36, 2254455), (42, 1932390), (45, 1803564), (51, 1591380), (54, 1502970), (60, 1352673), (63, 1288260), (68, 1193535), (70, 1159434), (81, 1001980), (84, 966195), (85, 954828), (90, 901782), (102, 795690), (105, 772956), (108, 751485), (119, 682020), (126, 644130), (135, 601188), (140, 579717), (153, 530460), (162, 500990), (170, 477414), (180, 450891), (189, 429420), (204, 397845), (210, 386478), (238, 341010), (252, 322065), (255, 318276), (270, 300594), (306, 265230), (315, 257652), (324, 250495), (340, 238707), (357, 227340), (378, 214710), (405, 200396), (420, 193239), (421, 192780), (459, 176820), (476, 170505), (510, 159138), (540, 150297), (567, 143140), (595, 136404), (612, 132615), (630, 128826), (714, 113670), (756, 107355), (765, 106092), (810, 100198), (842, 96390), (918, 88410), (945, 85884), (1020, 79569), (1071, 75780), (1134, 71570), (1190, 68202), (1260, 64413), (1263, 64260), (1377, 58940), (1428, 56835), (1530, 53046), (1620, 50099), (1684, 48195), (1785, 45468), (1836, 44205), (1890, 42942), (2105, 38556), (2142, 37890), (2268, 35785), (2295, 35364), (2380, 34101), (2526, 32130), (2754, 29470), (2835, 28628), (2947, 27540), (3060, 26523), (3213, 25260), (3570, 22734), (3780, 21471), (3789, 21420), (4210, 19278), (4284, 18945), (4590, 17682), (5052, 16065), (5355, 15156), (5508, 14735), (5670, 14314), (5894, 13770), (6315, 12852), (6426, 12630), (6885, 11788), (7140, 11367), (7157, 11340), (7578, 10710), (8420, 9639), (8841, 9180)]