138876080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247993}}^1$

素因数の和:248013

約数の個数: 40

約数和(自身を含む): 369015072

約数和(自身を除く): 230138992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247993, 495986, 991972, 1239965, 1735951, 1983944, 2479930, 3471902, 3967888, 4959860, 6943804, 8679755, 9919720, 13887608, 17359510, 19839440, 27775216, 34719020, 69438040, 138876080]

約数ペア:

[(1, 138876080), (2, 69438040), (4, 34719020), (5, 27775216), (7, 19839440), (8, 17359510), (10, 13887608), (14, 9919720), (16, 8679755), (20, 6943804), (28, 4959860), (35, 3967888), (40, 3471902), (56, 2479930), (70, 1983944), (80, 1735951), (112, 1239965), (140, 991972), (280, 495986), (560, 247993)]