129426920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{462239}}^1$

素因数の和:462257

約数の個数: 32

約数和(自身を含む): 332812800

約数和(自身を除く): 203385880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 462239, 924478, 1848956, 2311195, 3235673, 3697912, 4622390, 6471346, 9244780, 12942692, 16178365, 18489560, 25885384, 32356730, 64713460, 129426920]

約数ペア:

[(1, 129426920), (2, 64713460), (4, 32356730), (5, 25885384), (7, 18489560), (8, 16178365), (10, 12942692), (14, 9244780), (20, 6471346), (28, 4622390), (35, 3697912), (40, 3235673), (56, 2311195), (70, 1848956), (140, 924478), (280, 462239)]