8443640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 19754280

約数和(自身を除く): 11310640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 251, 290, 502, 580, 841, 1004, 1160, 1255, 1682, 2008, 2510, 3364, 4205, 5020, 6728, 7279, 8410, 10040, 14558, 16820, 29116, 33640, 36395, 58232, 72790, 145580, 211091, 291160, 422182, 844364, 1055455, 1688728, 2110910, 4221820, 8443640]

約数ペア:

[(1, 8443640), (2, 4221820), (4, 2110910), (5, 1688728), (8, 1055455), (10, 844364), (20, 422182), (29, 291160), (40, 211091), (58, 145580), (116, 72790), (145, 58232), (232, 36395), (251, 33640), (290, 29116), (502, 16820), (580, 14558), (841, 10040), (1004, 8410), (1160, 7279), (1255, 6728), (1682, 5020), (2008, 4205), (2510, 3364)]