31827280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20939}}^1$

素因数の和:20971

約数の個数: 40

約数和(自身を含む): 77896800

約数和(自身を除く): 46069520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20939, 41878, 83756, 104695, 167512, 209390, 335024, 397841, 418780, 795682, 837560, 1591364, 1675120, 1989205, 3182728, 3978410, 6365456, 7956820, 15913640, 31827280]

約数ペア:

[(1, 31827280), (2, 15913640), (4, 7956820), (5, 6365456), (8, 3978410), (10, 3182728), (16, 1989205), (19, 1675120), (20, 1591364), (38, 837560), (40, 795682), (76, 418780), (80, 397841), (95, 335024), (152, 209390), (190, 167512), (304, 104695), (380, 83756), (760, 41878), (1520, 20939)]