28499715

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 26335485

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 57, 95, 123, 135, 171, 205, 271, 285, 369, 513, 615, 779, 813, 855, 1107, 1355, 1845, 2337, 2439, 2565, 3895, 4065, 5149, 5535, 7011, 7317, 11111, 11685, 12195, 15447, 21033, 25745, 33333, 35055, 36585, 46341, 55555, 77235, 99999, 105165, 139023, 166665, 211109, 231705, 299997, 499995, 633327, 695115, 1055545, 1499985, 1899981, 3166635, 5699943, 9499905, 28499715]

約数ペア:

[(1, 28499715), (3, 9499905), (5, 5699943), (9, 3166635), (15, 1899981), (19, 1499985), (27, 1055545), (41, 695115), (45, 633327), (57, 499995), (95, 299997), (123, 231705), (135, 211109), (171, 166665), (205, 139023), (271, 105165), (285, 99999), (369, 77235), (513, 55555), (615, 46341), (779, 36585), (813, 35055), (855, 33333), (1107, 25745), (1355, 21033), (1845, 15447), (2337, 12195), (2439, 11685), (2565, 11111), (3895, 7317), (4065, 7011), (5149, 5535)]