128045128

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{991}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 248555520

約数和(自身を除く): 120510392

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 521, 991, 1042, 1982, 2084, 3964, 4168, 7928, 16151, 30721, 32302, 61442, 64604, 122884, 129208, 245768, 516311, 1032622, 2065244, 4130488, 16005641, 32011282, 64022564, 128045128]

約数ペア:

[(1, 128045128), (2, 64022564), (4, 32011282), (8, 16005641), (31, 4130488), (62, 2065244), (124, 1032622), (248, 516311), (521, 245768), (991, 129208), (1042, 122884), (1982, 64604), (2084, 61442), (3964, 32302), (4168, 30721), (7928, 16151)]