78694840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281053}}^1$

素因数の和:281071

約数の個数: 32

約数和(自身を含む): 202358880

約数和(自身を除く): 123664040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281053, 562106, 1124212, 1405265, 1967371, 2248424, 2810530, 3934742, 5621060, 7869484, 9836855, 11242120, 15738968, 19673710, 39347420, 78694840]

約数ペア:

[(1, 78694840), (2, 39347420), (4, 19673710), (5, 15738968), (7, 11242120), (8, 9836855), (10, 7869484), (14, 5621060), (20, 3934742), (28, 2810530), (35, 2248424), (40, 1967371), (56, 1405265), (70, 1124212), (140, 562106), (280, 281053)]