289090018

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1\times {\mathrm{487}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 502444800

約数和(自身を除く): 213354782

約数列:

[1, 2, 7, 14, 109, 218, 389, 487, 763, 778, 974, 1526, 2723, 3409, 5446, 6818, 42401, 53083, 84802, 106166, 189443, 296807, 371581, 378886, 593614, 743162, 1326101, 2652202, 20649287, 41298574, 144545009, 289090018]

約数ペア:

[(1, 289090018), (2, 144545009), (7, 41298574), (14, 20649287), (109, 2652202), (218, 1326101), (389, 743162), (487, 593614), (763, 378886), (778, 371581), (974, 296807), (1526, 189443), (2723, 106166), (3409, 84802), (5446, 53083), (6818, 42401)]