66913840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{119489}}^1$

素因数の和:119509

約数の個数: 40

約数和(自身を含む): 177801120

約数和(自身を除く): 110887280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 119489, 238978, 477956, 597445, 836423, 955912, 1194890, 1672846, 1911824, 2389780, 3345692, 4182115, 4779560, 6691384, 8364230, 9559120, 13382768, 16728460, 33456920, 66913840]

約数ペア:

[(1, 66913840), (2, 33456920), (4, 16728460), (5, 13382768), (7, 9559120), (8, 8364230), (10, 6691384), (14, 4779560), (16, 4182115), (20, 3345692), (28, 2389780), (35, 1911824), (40, 1672846), (56, 1194890), (70, 955912), (80, 836423), (112, 597445), (140, 477956), (280, 238978), (560, 119489)]