254208045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 527966208

約数和(自身を除く): 273758163

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 43, 61, 65, 71, 91, 105, 129, 183, 195, 213, 215, 273, 301, 305, 355, 427, 455, 497, 559, 645, 793, 903, 915, 923, 1065, 1281, 1365, 1491, 1505, 1677, 2135, 2379, 2485, 2623, 2769, 2795, 3053, 3913, 3965, 4331, 4515, 4615, 5551, 6405, 6461, 7455, 7869, 8385, 9159, 11739, 11895, 12993, 13115, 13845, 15265, 16653, 18361, 19383, 19565, 21371, 21655, 27755, 30317, 32305, 34099, 39345, 39689, 45795, 55083, 56303, 58695, 64113, 64965, 83265, 90951, 91805, 96915, 102297, 106855, 119067, 151585, 168909, 170495, 186233, 198445, 238693, 275415, 277823, 281515, 320565, 394121, 454755, 511485, 558699, 595335, 716079, 833469, 844545, 931165, 1182363, 1193465, 1303631, 1389115, 1970605, 2421029, 2793495, 3580395, 3910893, 4167345, 5911815, 6518155, 7263087, 12105145, 16947203, 19554465, 36315435, 50841609, 84736015, 254208045]

約数ペア:

[(1, 254208045), (3, 84736015), (5, 50841609), (7, 36315435), (13, 19554465), (15, 16947203), (21, 12105145), (35, 7263087), (39, 6518155), (43, 5911815), (61, 4167345), (65, 3910893), (71, 3580395), (91, 2793495), (105, 2421029), (129, 1970605), (183, 1389115), (195, 1303631), (213, 1193465), (215, 1182363), (273, 931165), (301, 844545), (305, 833469), (355, 716079), (427, 595335), (455, 558699), (497, 511485), (559, 454755), (645, 394121), (793, 320565), (903, 281515), (915, 277823), (923, 275415), (1065, 238693), (1281, 198445), (1365, 186233), (1491, 170495), (1505, 168909), (1677, 151585), (2135, 119067), (2379, 106855), (2485, 102297), (2623, 96915), (2769, 91805), (2795, 90951), (3053, 83265), (3913, 64965), (3965, 64113), (4331, 58695), (4515, 56303), (4615, 55083), (5551, 45795), (6405, 39689), (6461, 39345), (7455, 34099), (7869, 32305), (8385, 30317), (9159, 27755), (11739, 21655), (11895, 21371), (12993, 19565), (13115, 19383), (13845, 18361), (15265, 16653)]