12878775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 30873024

約数和(自身を除く): 17994249

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 25, 35, 37, 39, 45, 51, 63, 65, 75, 85, 91, 105, 111, 117, 119, 153, 175, 185, 195, 221, 225, 255, 259, 273, 315, 325, 333, 357, 425, 455, 481, 525, 555, 585, 595, 629, 663, 765, 777, 819, 925, 975, 1071, 1105, 1275, 1295, 1365, 1443, 1547, 1575, 1665, 1785, 1887, 1989, 2275, 2331, 2405, 2775, 2925, 2975, 3145, 3315, 3367, 3825, 3885, 4095, 4329, 4403, 4641, 5355, 5525, 5661, 6475, 6825, 7215, 7735, 8177, 8325, 8925, 9435, 9945, 10101, 11655, 12025, 13209, 13923, 15725, 16575, 16835, 19425, 20475, 21645, 22015, 23205, 24531, 26775, 28305, 30303, 36075, 38675, 39627, 40885, 47175, 49725, 50505, 57239, 58275, 66045, 69615, 73593, 84175, 108225, 110075, 116025, 122655, 141525, 151515, 171717, 198135, 204425, 252525, 286195, 330225, 348075, 367965, 515151, 613275, 757575, 858585, 990675, 1430975, 1839825, 2575755, 4292925, 12878775]

約数ペア:

[(1, 12878775), (3, 4292925), (5, 2575755), (7, 1839825), (9, 1430975), (13, 990675), (15, 858585), (17, 757575), (21, 613275), (25, 515151), (35, 367965), (37, 348075), (39, 330225), (45, 286195), (51, 252525), (63, 204425), (65, 198135), (75, 171717), (85, 151515), (91, 141525), (105, 122655), (111, 116025), (117, 110075), (119, 108225), (153, 84175), (175, 73593), (185, 69615), (195, 66045), (221, 58275), (225, 57239), (255, 50505), (259, 49725), (273, 47175), (315, 40885), (325, 39627), (333, 38675), (357, 36075), (425, 30303), (455, 28305), (481, 26775), (525, 24531), (555, 23205), (585, 22015), (595, 21645), (629, 20475), (663, 19425), (765, 16835), (777, 16575), (819, 15725), (925, 13923), (975, 13209), (1071, 12025), (1105, 11655), (1275, 10101), (1295, 9945), (1365, 9435), (1443, 8925), (1547, 8325), (1575, 8177), (1665, 7735), (1785, 7215), (1887, 6825), (1989, 6475), (2275, 5661), (2331, 5525), (2405, 5355), (2775, 4641), (2925, 4403), (2975, 4329), (3145, 4095), (3315, 3885), (3367, 3825)]