154252840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{550903}}^1$

素因数の和:550921

約数の個数: 32

約数和(自身を含む): 396650880

約数和(自身を除く): 242398040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 550903, 1101806, 2203612, 2754515, 3856321, 4407224, 5509030, 7712642, 11018060, 15425284, 19281605, 22036120, 30850568, 38563210, 77126420, 154252840]

約数ペア:

[(1, 154252840), (2, 77126420), (4, 38563210), (5, 30850568), (7, 22036120), (8, 19281605), (10, 15425284), (14, 11018060), (20, 7712642), (28, 5509030), (35, 4407224), (40, 3856321), (56, 2754515), (70, 2203612), (140, 1101806), (280, 550903)]