278261235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 578672640

約数和(自身を除く): 300411405

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 83, 87, 105, 145, 203, 249, 261, 315, 367, 415, 435, 581, 609, 747, 1015, 1101, 1245, 1305, 1743, 1827, 1835, 2407, 2569, 2905, 3045, 3303, 3735, 5229, 5505, 7221, 7707, 8715, 9135, 10643, 12035, 12845, 16515, 16849, 21663, 23121, 26145, 30461, 31929, 36105, 38535, 50547, 53215, 74501, 84245, 91383, 95787, 108315, 115605, 151641, 152305, 159645, 213227, 223503, 252735, 274149, 372505, 456915, 478935, 639681, 670509, 758205, 883369, 1066135, 1117515, 1370745, 1919043, 2650107, 3198405, 3352545, 4416845, 6183583, 7950321, 9595215, 13250535, 18550749, 30917915, 39751605, 55652247, 92753745, 278261235]

約数ペア:

[(1, 278261235), (3, 92753745), (5, 55652247), (7, 39751605), (9, 30917915), (15, 18550749), (21, 13250535), (29, 9595215), (35, 7950321), (45, 6183583), (63, 4416845), (83, 3352545), (87, 3198405), (105, 2650107), (145, 1919043), (203, 1370745), (249, 1117515), (261, 1066135), (315, 883369), (367, 758205), (415, 670509), (435, 639681), (581, 478935), (609, 456915), (747, 372505), (1015, 274149), (1101, 252735), (1245, 223503), (1305, 213227), (1743, 159645), (1827, 152305), (1835, 151641), (2407, 115605), (2569, 108315), (2905, 95787), (3045, 91383), (3303, 84245), (3735, 74501), (5229, 53215), (5505, 50547), (7221, 38535), (7707, 36105), (8715, 31929), (9135, 30461), (10643, 26145), (12035, 23121), (12845, 21663), (16515, 16849)]