211018840

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{2647}}^1$

素因数の和:4651

約数の個数: 32

約数和(自身を含む): 475210080

約数和(自身を除く): 264191240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 2647, 3986, 5294, 7972, 9965, 10588, 13235, 15944, 19930, 21176, 26470, 39860, 52940, 79720, 105880, 5275471, 10550942, 21101884, 26377355, 42203768, 52754710, 105509420, 211018840]

約数ペア:

[(1, 211018840), (2, 105509420), (4, 52754710), (5, 42203768), (8, 26377355), (10, 21101884), (20, 10550942), (40, 5275471), (1993, 105880), (2647, 79720), (3986, 52940), (5294, 39860), (7972, 26470), (9965, 21176), (10588, 19930), (13235, 15944)]