1280475

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{271}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 2698240

約数和(自身を除く): 1417765

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 271, 315, 525, 675, 813, 945, 1355, 1575, 1897, 2439, 4065, 4725, 5691, 6775, 7317, 9485, 12195, 17073, 20325, 28455, 36585, 47425, 51219, 60975, 85365, 142275, 182925, 256095, 426825, 1280475]

約数ペア:

[(1, 1280475), (3, 426825), (5, 256095), (7, 182925), (9, 142275), (15, 85365), (21, 60975), (25, 51219), (27, 47425), (35, 36585), (45, 28455), (63, 20325), (75, 17073), (105, 12195), (135, 9485), (175, 7317), (189, 6775), (225, 5691), (271, 4725), (315, 4065), (525, 2439), (675, 1897), (813, 1575), (945, 1355)]