289885725

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{21121}}^1$

素因数の和:21198

約数の個数: 36

約数和(自身を含む): 527754292

約数和(自身を除く): 237868567

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 183, 225, 305, 549, 915, 1525, 2745, 4575, 13725, 21121, 63363, 105605, 190089, 316815, 528025, 950445, 1288381, 1584075, 3865143, 4752225, 6441905, 11595429, 19325715, 32209525, 57977145, 96628575, 289885725]

約数ペア:

[(1, 289885725), (3, 96628575), (5, 57977145), (9, 32209525), (15, 19325715), (25, 11595429), (45, 6441905), (61, 4752225), (75, 3865143), (183, 1584075), (225, 1288381), (305, 950445), (549, 528025), (915, 316815), (1525, 190089), (2745, 105605), (4575, 63363), (13725, 21121)]