31588940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19993}}^1$

素因数の和:20081

約数の個数: 24

約数和(自身を含む): 67179840

約数和(自身を除く): 35590900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19993, 39986, 79972, 99965, 199930, 399860, 1579447, 3158894, 6317788, 7897235, 15794470, 31588940]

約数ペア:

[(1, 31588940), (2, 15794470), (4, 7897235), (5, 6317788), (10, 3158894), (20, 1579447), (79, 399860), (158, 199930), (316, 99965), (395, 79972), (790, 39986), (1580, 19993)]