1978561828

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{188291}}^1$

素因数の和:188403

約数の個数: 24

約数和(自身を含む): 3606168384

約数和(自身を除く): 1627606556

約数列:

[1, 2, 4, 37, 71, 74, 142, 148, 284, 2627, 5254, 10508, 188291, 376582, 753164, 6966767, 13368661, 13933534, 26737322, 27867068, 53474644, 494640457, 989280914, 1978561828]

約数ペア:

[(1, 1978561828), (2, 989280914), (4, 494640457), (37, 53474644), (71, 27867068), (74, 26737322), (142, 13933534), (148, 13368661), (284, 6966767), (2627, 753164), (5254, 376582), (10508, 188291)]