28678456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{487}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 57183840

約数和(自身を除く): 28505384

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 433, 487, 866, 974, 1732, 1948, 3464, 3896, 7361, 8279, 14722, 16558, 29444, 33116, 58888, 66232, 210871, 421742, 843484, 1686968, 3584807, 7169614, 14339228, 28678456]

約数ペア:

[(1, 28678456), (2, 14339228), (4, 7169614), (8, 3584807), (17, 1686968), (34, 843484), (68, 421742), (136, 210871), (433, 66232), (487, 58888), (866, 33116), (974, 29444), (1732, 16558), (1948, 14722), (3464, 8279), (3896, 7361)]