8871640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{863}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 20062080

約数和(自身を除く): 11190440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 863, 1028, 1285, 1726, 2056, 2570, 3452, 4315, 5140, 6904, 8630, 10280, 17260, 34520, 221791, 443582, 887164, 1108955, 1774328, 2217910, 4435820, 8871640]

約数ペア:

[(1, 8871640), (2, 4435820), (4, 2217910), (5, 1774328), (8, 1108955), (10, 887164), (20, 443582), (40, 221791), (257, 34520), (514, 17260), (863, 10280), (1028, 8630), (1285, 6904), (1726, 5140), (2056, 4315), (2570, 3452)]