128751920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{146309}}^1$

素因数の和:146333

約数の個数: 40

約数和(自身を含む): 326563920

約数和(自身を除く): 197812000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 146309, 292618, 585236, 731545, 1170472, 1463090, 1609399, 2340944, 2926180, 3218798, 5852360, 6437596, 8046995, 11704720, 12875192, 16093990, 25750384, 32187980, 64375960, 128751920]

約数ペア:

[(1, 128751920), (2, 64375960), (4, 32187980), (5, 25750384), (8, 16093990), (10, 12875192), (11, 11704720), (16, 8046995), (20, 6437596), (22, 5852360), (40, 3218798), (44, 2926180), (55, 2340944), (80, 1609399), (88, 1463090), (110, 1170472), (176, 731545), (220, 585236), (440, 292618), (880, 146309)]