161917760

素因数分解:

$2^6\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1039}}^1$

素因数の和:1543

約数の個数: 56

約数和(自身を含む): 386730240

約数和(自身を除く): 224812480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 487, 974, 1039, 1948, 2078, 2435, 3896, 4156, 4870, 5195, 7792, 8312, 9740, 10390, 15584, 16624, 19480, 20780, 31168, 33248, 38960, 41560, 66496, 77920, 83120, 155840, 166240, 332480, 505993, 1011986, 2023972, 2529965, 4047944, 5059930, 8095888, 10119860, 16191776, 20239720, 32383552, 40479440, 80958880, 161917760]

約数ペア:

[(1, 161917760), (2, 80958880), (4, 40479440), (5, 32383552), (8, 20239720), (10, 16191776), (16, 10119860), (20, 8095888), (32, 5059930), (40, 4047944), (64, 2529965), (80, 2023972), (160, 1011986), (320, 505993), (487, 332480), (974, 166240), (1039, 155840), (1948, 83120), (2078, 77920), (2435, 66496), (3896, 41560), (4156, 38960), (4870, 33248), (5195, 31168), (7792, 20780), (8312, 19480), (9740, 16624), (10390, 15584)]