77793520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138917}}^1$

素因数の和:138937

約数の個数: 40

約数和(自身を含む): 206709984

約数和(自身を除く): 128916464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138917, 277834, 555668, 694585, 972419, 1111336, 1389170, 1944838, 2222672, 2778340, 3889676, 4862095, 5556680, 7779352, 9724190, 11113360, 15558704, 19448380, 38896760, 77793520]

約数ペア:

[(1, 77793520), (2, 38896760), (4, 19448380), (5, 15558704), (7, 11113360), (8, 9724190), (10, 7779352), (14, 5556680), (16, 4862095), (20, 3889676), (28, 2778340), (35, 2222672), (40, 1944838), (56, 1389170), (70, 1111336), (80, 972419), (112, 694585), (140, 555668), (280, 277834), (560, 138917)]