201719985

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1\times {\mathrm{491}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 329443200

約数和(自身を除く): 127723215

約数列:

[1, 3, 5, 15, 61, 183, 305, 449, 491, 915, 1347, 1473, 2245, 2455, 6735, 7365, 27389, 29951, 82167, 89853, 136945, 149755, 220459, 410835, 449265, 661377, 1102295, 3306885, 13447999, 40343997, 67239995, 201719985]

約数ペア:

[(1, 201719985), (3, 67239995), (5, 40343997), (15, 13447999), (61, 3306885), (183, 1102295), (305, 661377), (449, 449265), (491, 410835), (915, 220459), (1347, 149755), (1473, 136945), (2245, 89853), (2455, 82167), (6735, 29951), (7365, 27389)]