161609840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41227}}^1$

素因数の和:41254

約数の個数: 60

約数和(自身を含む): 437099256

約数和(自身を除く): 275489416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 41227, 82454, 164908, 206135, 288589, 329816, 412270, 577178, 659632, 824540, 1154356, 1442945, 1649080, 2020123, 2308712, 2885890, 3298160, 4040246, 4617424, 5771780, 8080492, 10100615, 11543560, 16160984, 20201230, 23087120, 32321968, 40402460, 80804920, 161609840]

約数ペア:

[(1, 161609840), (2, 80804920), (4, 40402460), (5, 32321968), (7, 23087120), (8, 20201230), (10, 16160984), (14, 11543560), (16, 10100615), (20, 8080492), (28, 5771780), (35, 4617424), (40, 4040246), (49, 3298160), (56, 2885890), (70, 2308712), (80, 2020123), (98, 1649080), (112, 1442945), (140, 1154356), (196, 824540), (245, 659632), (280, 577178), (392, 412270), (490, 329816), (560, 288589), (784, 206135), (980, 164908), (1960, 82454), (3920, 41227)]