78126320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23819}}^1$

素因数の和:23873

約数の個数: 40

約数和(自身を含む): 186081840

約数和(自身を除く): 107955520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 23819, 47638, 95276, 119095, 190552, 238190, 381104, 476380, 952760, 976579, 1905520, 1953158, 3906316, 4882895, 7812632, 9765790, 15625264, 19531580, 39063160, 78126320]

約数ペア:

[(1, 78126320), (2, 39063160), (4, 19531580), (5, 15625264), (8, 9765790), (10, 7812632), (16, 4882895), (20, 3906316), (40, 1953158), (41, 1905520), (80, 976579), (82, 952760), (164, 476380), (205, 381104), (328, 238190), (410, 190552), (656, 119095), (820, 95276), (1640, 47638), (3280, 23819)]