81707580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453931}}^1$

素因数の和:453946

約数の個数: 36

約数和(自身を含む): 247846872

約数和(自身を除く): 166139292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453931, 907862, 1361793, 1815724, 2269655, 2723586, 4085379, 4539310, 5447172, 6808965, 8170758, 9078620, 13617930, 16341516, 20426895, 27235860, 40853790, 81707580]

約数ペア:

[(1, 81707580), (2, 40853790), (3, 27235860), (4, 20426895), (5, 16341516), (6, 13617930), (9, 9078620), (10, 8170758), (12, 6808965), (15, 5447172), (18, 4539310), (20, 4085379), (30, 2723586), (36, 2269655), (45, 1815724), (60, 1361793), (90, 907862), (180, 453931)]