247289315

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{397}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 376310592

約数和(自身を除く): 129021277

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 397, 455, 481, 1295, 1369, 1985, 2405, 2779, 3367, 5161, 6845, 9583, 13895, 14689, 16835, 17797, 25805, 36127, 47915, 73445, 88985, 102823, 124579, 180635, 190957, 514115, 543493, 622895, 954785, 1336699, 2717465, 3804451, 6683495, 7065409, 19022255, 35327045, 49457863, 247289315]

約数ペア:

[(1, 247289315), (5, 49457863), (7, 35327045), (13, 19022255), (35, 7065409), (37, 6683495), (65, 3804451), (91, 2717465), (185, 1336699), (259, 954785), (397, 622895), (455, 543493), (481, 514115), (1295, 190957), (1369, 180635), (1985, 124579), (2405, 102823), (2779, 88985), (3367, 73445), (5161, 47915), (6845, 36127), (9583, 25805), (13895, 17797), (14689, 16835)]