28267260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 99283968

約数和(自身を除く): 71016708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 37, 42, 51, 60, 68, 70, 74, 84, 85, 102, 105, 107, 111, 119, 140, 148, 170, 185, 204, 210, 214, 222, 238, 255, 259, 321, 340, 357, 370, 420, 428, 444, 476, 510, 518, 535, 555, 595, 629, 642, 714, 740, 749, 777, 1020, 1036, 1070, 1110, 1190, 1258, 1284, 1295, 1428, 1498, 1554, 1605, 1785, 1819, 1887, 2140, 2220, 2247, 2380, 2516, 2590, 2996, 3108, 3145, 3210, 3570, 3638, 3745, 3774, 3885, 3959, 4403, 4494, 5180, 5457, 6290, 6420, 7140, 7276, 7490, 7548, 7770, 7918, 8806, 8988, 9095, 9435, 10914, 11235, 11877, 12580, 12733, 13209, 14980, 15540, 15836, 17612, 18190, 18870, 19795, 21828, 22015, 22470, 23754, 25466, 26418, 27285, 27713, 36380, 37740, 38199, 39590, 44030, 44940, 47508, 50932, 52836, 54570, 55426, 59385, 63665, 66045, 67303, 76398, 79180, 83139, 88060, 109140, 110852, 118770, 127330, 132090, 134606, 138565, 152796, 166278, 190995, 201909, 237540, 254660, 264180, 269212, 277130, 332556, 336515, 381990, 403818, 415695, 471121, 554260, 673030, 763980, 807636, 831390, 942242, 1009545, 1346060, 1413363, 1662780, 1884484, 2019090, 2355605, 2826726, 4038180, 4711210, 5653452, 7066815, 9422420, 14133630, 28267260]

約数ペア:

[(1, 28267260), (2, 14133630), (3, 9422420), (4, 7066815), (5, 5653452), (6, 4711210), (7, 4038180), (10, 2826726), (12, 2355605), (14, 2019090), (15, 1884484), (17, 1662780), (20, 1413363), (21, 1346060), (28, 1009545), (30, 942242), (34, 831390), (35, 807636), (37, 763980), (42, 673030), (51, 554260), (60, 471121), (68, 415695), (70, 403818), (74, 381990), (84, 336515), (85, 332556), (102, 277130), (105, 269212), (107, 264180), (111, 254660), (119, 237540), (140, 201909), (148, 190995), (170, 166278), (185, 152796), (204, 138565), (210, 134606), (214, 132090), (222, 127330), (238, 118770), (255, 110852), (259, 109140), (321, 88060), (340, 83139), (357, 79180), (370, 76398), (420, 67303), (428, 66045), (444, 63665), (476, 59385), (510, 55426), (518, 54570), (535, 52836), (555, 50932), (595, 47508), (629, 44940), (642, 44030), (714, 39590), (740, 38199), (749, 37740), (777, 36380), (1020, 27713), (1036, 27285), (1070, 26418), (1110, 25466), (1190, 23754), (1258, 22470), (1284, 22015), (1295, 21828), (1428, 19795), (1498, 18870), (1554, 18190), (1605, 17612), (1785, 15836), (1819, 15540), (1887, 14980), (2140, 13209), (2220, 12733), (2247, 12580), (2380, 11877), (2516, 11235), (2590, 10914), (2996, 9435), (3108, 9095), (3145, 8988), (3210, 8806), (3570, 7918), (3638, 7770), (3745, 7548), (3774, 7490), (3885, 7276), (3959, 7140), (4403, 6420), (4494, 6290), (5180, 5457)]