87841880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313721}}^1$

素因数の和:313739

約数の個数: 32

約数和(自身を含む): 225879840

約数和(自身を除く): 138037960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313721, 627442, 1254884, 1568605, 2196047, 2509768, 3137210, 4392094, 6274420, 8784188, 10980235, 12548840, 17568376, 21960470, 43920940, 87841880]

約数ペア:

[(1, 87841880), (2, 43920940), (4, 21960470), (5, 17568376), (7, 12548840), (8, 10980235), (10, 8784188), (14, 6274420), (20, 4392094), (28, 3137210), (35, 2509768), (40, 2196047), (56, 1568605), (70, 1254884), (140, 627442), (280, 313721)]