9905210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2078

約数の個数: 32

約数和(自身を含む): 20673792

約数和(自身を除く): 10768582

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 1993, 2485, 3986, 4970, 9965, 13951, 19930, 27902, 69755, 139510, 141503, 283006, 707515, 990521, 1415030, 1981042, 4952605, 9905210]

約数ペア:

[(1, 9905210), (2, 4952605), (5, 1981042), (7, 1415030), (10, 990521), (14, 707515), (35, 283006), (70, 141503), (71, 139510), (142, 69755), (355, 27902), (497, 19930), (710, 13951), (994, 9965), (1993, 4970), (2485, 3986)]