1640779965

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{541}}^1\times {\mathrm{557}}^1$

素因数の和:1131

約数の個数: 72

約数和(自身を含む): 3137471064

約数和(自身を除く): 1496691099

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 541, 557, 605, 1089, 1623, 1671, 1815, 2705, 2785, 4869, 5013, 5445, 5951, 6127, 8115, 8355, 17853, 18381, 24345, 25065, 29755, 30635, 53559, 55143, 65461, 67397, 89265, 91905, 196383, 202191, 267795, 275715, 301337, 327305, 336985, 589149, 606573, 904011, 981915, 1010955, 1506685, 2712033, 2945745, 3032865, 3314707, 4520055, 9944121, 13560165, 16573535, 29832363, 36461777, 49720605, 109385331, 149161815, 182308885, 328155993, 546926655, 1640779965]

約数ペア:

[(1, 1640779965), (3, 546926655), (5, 328155993), (9, 182308885), (11, 149161815), (15, 109385331), (33, 49720605), (45, 36461777), (55, 29832363), (99, 16573535), (121, 13560165), (165, 9944121), (363, 4520055), (495, 3314707), (541, 3032865), (557, 2945745), (605, 2712033), (1089, 1506685), (1623, 1010955), (1671, 981915), (1815, 904011), (2705, 606573), (2785, 589149), (4869, 336985), (5013, 327305), (5445, 301337), (5951, 275715), (6127, 267795), (8115, 202191), (8355, 196383), (17853, 91905), (18381, 89265), (24345, 67397), (25065, 65461), (29755, 55143), (30635, 53559)]