388618181

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 480598272

約数和(自身を除く): 91980091

約数列:

[1, 7, 17, 97, 119, 131, 257, 679, 917, 1649, 1799, 2227, 4369, 11543, 12707, 15589, 24929, 30583, 33667, 88949, 174503, 216019, 235669, 423793, 572339, 1512133, 2966551, 3265699, 4006373, 22859893, 55516883, 388618181]

約数ペア:

[(1, 388618181), (7, 55516883), (17, 22859893), (97, 4006373), (119, 3265699), (131, 2966551), (257, 1512133), (679, 572339), (917, 423793), (1649, 235669), (1799, 216019), (2227, 174503), (4369, 88949), (11543, 33667), (12707, 30583), (15589, 24929)]