87439240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{312283}}^1$

素因数の和:312301

約数の個数: 32

約数和(自身を含む): 224844480

約数和(自身を除く): 137405240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 312283, 624566, 1249132, 1561415, 2185981, 2498264, 3122830, 4371962, 6245660, 8743924, 10929905, 12491320, 17487848, 21859810, 43719620, 87439240]

約数ペア:

[(1, 87439240), (2, 43719620), (4, 21859810), (5, 17487848), (7, 12491320), (8, 10929905), (10, 8743924), (14, 6245660), (20, 4371962), (28, 3122830), (35, 2498264), (40, 2185981), (56, 1561415), (70, 1249132), (140, 624566), (280, 312283)]