157640800

素因数分解:

$2^5\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1951}}^1$

素因数の和:2072

約数の個数: 72

約数和(自身を含む): 388850112

約数和(自身を除く): 231209312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 101, 160, 200, 202, 400, 404, 505, 800, 808, 1010, 1616, 1951, 2020, 2525, 3232, 3902, 4040, 5050, 7804, 8080, 9755, 10100, 15608, 16160, 19510, 20200, 31216, 39020, 40400, 48775, 62432, 78040, 80800, 97550, 156080, 195100, 197051, 312160, 390200, 394102, 780400, 788204, 985255, 1560800, 1576408, 1970510, 3152816, 3941020, 4926275, 6305632, 7882040, 9852550, 15764080, 19705100, 31528160, 39410200, 78820400, 157640800]

約数ペア:

[(1, 157640800), (2, 78820400), (4, 39410200), (5, 31528160), (8, 19705100), (10, 15764080), (16, 9852550), (20, 7882040), (25, 6305632), (32, 4926275), (40, 3941020), (50, 3152816), (80, 1970510), (100, 1576408), (101, 1560800), (160, 985255), (200, 788204), (202, 780400), (400, 394102), (404, 390200), (505, 312160), (800, 197051), (808, 195100), (1010, 156080), (1616, 97550), (1951, 80800), (2020, 78040), (2525, 62432), (3232, 48775), (3902, 40400), (4040, 39020), (5050, 31216), (7804, 20200), (8080, 19510), (9755, 16160), (10100, 15608)]