42187905

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 78566400

約数和(自身を除く): 36378495

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 61, 109, 135, 141, 183, 235, 305, 327, 423, 545, 549, 705, 915, 981, 1269, 1635, 1647, 2115, 2745, 2867, 2943, 4905, 5123, 6345, 6649, 8235, 8601, 14335, 14715, 15369, 19947, 25615, 25803, 33245, 43005, 46107, 59841, 76845, 77409, 99735, 129015, 138321, 179523, 230535, 299205, 312503, 387045, 691605, 897615, 937509, 1562515, 2812527, 4687545, 8437581, 14062635, 42187905]

約数ペア:

[(1, 42187905), (3, 14062635), (5, 8437581), (9, 4687545), (15, 2812527), (27, 1562515), (45, 937509), (47, 897615), (61, 691605), (109, 387045), (135, 312503), (141, 299205), (183, 230535), (235, 179523), (305, 138321), (327, 129015), (423, 99735), (545, 77409), (549, 76845), (705, 59841), (915, 46107), (981, 43005), (1269, 33245), (1635, 25803), (1647, 25615), (2115, 19947), (2745, 15369), (2867, 14715), (2943, 14335), (4905, 8601), (5123, 8235), (6345, 6649)]