201257985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 355767552

約数和(自身を除く): 154509567

約数列:

[1, 3, 5, 15, 17, 37, 51, 83, 85, 111, 185, 249, 255, 257, 415, 555, 629, 771, 1245, 1285, 1411, 1887, 3071, 3145, 3855, 4233, 4369, 7055, 9213, 9435, 9509, 13107, 15355, 21165, 21331, 21845, 28527, 46065, 47545, 52207, 63993, 65535, 106655, 142635, 156621, 161653, 261035, 319965, 362627, 484959, 783105, 789247, 808265, 1087881, 1813135, 2367741, 2424795, 3946235, 5439405, 11838705, 13417199, 40251597, 67085995, 201257985]

約数ペア:

[(1, 201257985), (3, 67085995), (5, 40251597), (15, 13417199), (17, 11838705), (37, 5439405), (51, 3946235), (83, 2424795), (85, 2367741), (111, 1813135), (185, 1087881), (249, 808265), (255, 789247), (257, 783105), (415, 484959), (555, 362627), (629, 319965), (771, 261035), (1245, 161653), (1285, 156621), (1411, 142635), (1887, 106655), (3071, 65535), (3145, 63993), (3855, 52207), (4233, 47545), (4369, 46065), (7055, 28527), (9213, 21845), (9435, 21331), (9509, 21165), (13107, 15355)]