77928280

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{5519}}^1$

素因数の和:5883

約数の個数: 32

約数和(自身を含む): 175867200

約数和(自身を除く): 97938920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 5519, 7060, 11038, 14120, 22076, 27595, 44152, 55190, 110380, 220760, 1948207, 3896414, 7792828, 9741035, 15585656, 19482070, 38964140, 77928280]

約数ペア:

[(1, 77928280), (2, 38964140), (4, 19482070), (5, 15585656), (8, 9741035), (10, 7792828), (20, 3896414), (40, 1948207), (353, 220760), (706, 110380), (1412, 55190), (1765, 44152), (2824, 27595), (3530, 22076), (5519, 14120), (7060, 11038)]