47720745

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:196

約数の個数: 80

約数和(自身を含む): 91998720

約数和(自身を除く): 44277975

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 81, 109, 115, 135, 141, 207, 235, 327, 345, 405, 423, 545, 621, 705, 981, 1035, 1081, 1269, 1635, 1863, 2115, 2507, 2943, 3105, 3243, 3807, 4905, 5123, 5405, 6345, 7521, 8829, 9315, 9729, 12535, 14715, 15369, 16215, 19035, 22563, 25615, 29187, 37605, 44145, 46107, 48645, 67689, 76845, 87561, 112815, 117829, 138321, 145935, 203067, 230535, 338445, 353487, 414963, 437805, 589145, 691605, 1015335, 1060461, 1767435, 2074815, 3181383, 5302305, 9544149, 15906915, 47720745]

約数ペア:

[(1, 47720745), (3, 15906915), (5, 9544149), (9, 5302305), (15, 3181383), (23, 2074815), (27, 1767435), (45, 1060461), (47, 1015335), (69, 691605), (81, 589145), (109, 437805), (115, 414963), (135, 353487), (141, 338445), (207, 230535), (235, 203067), (327, 145935), (345, 138321), (405, 117829), (423, 112815), (545, 87561), (621, 76845), (705, 67689), (981, 48645), (1035, 46107), (1081, 44145), (1269, 37605), (1635, 29187), (1863, 25615), (2115, 22563), (2507, 19035), (2943, 16215), (3105, 15369), (3243, 14715), (3807, 12535), (4905, 9729), (5123, 9315), (5405, 8829), (6345, 7521)]