128871215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1879}}^1$

素因数の和:1967

約数の個数: 32

約数和(自身を含む): 178675200

約数和(自身を除く): 49803985

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 319, 473, 1247, 1595, 1879, 2365, 6235, 9395, 13717, 20669, 54491, 68585, 80797, 103345, 272455, 403985, 599401, 888767, 2343113, 2997005, 4443835, 11715565, 25774243, 128871215]

約数ペア:

[(1, 128871215), (5, 25774243), (11, 11715565), (29, 4443835), (43, 2997005), (55, 2343113), (145, 888767), (215, 599401), (319, 403985), (473, 272455), (1247, 103345), (1595, 80797), (1879, 68585), (2365, 54491), (6235, 20669), (9395, 13717)]