40442920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{144439}}^1$

素因数の和:144457

約数の個数: 32

約数和(自身を含む): 103996800

約数和(自身を除く): 63553880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 144439, 288878, 577756, 722195, 1011073, 1155512, 1444390, 2022146, 2888780, 4044292, 5055365, 5777560, 8088584, 10110730, 20221460, 40442920]

約数ペア:

[(1, 40442920), (2, 20221460), (4, 10110730), (5, 8088584), (7, 5777560), (8, 5055365), (10, 4044292), (14, 2888780), (20, 2022146), (28, 1444390), (35, 1155512), (40, 1011073), (56, 722195), (70, 577756), (140, 288878), (280, 144439)]