161288900

素因数分解:

$2^2\times 5^2\times {\mathrm{313}}^1\times {\mathrm{5153}}^1$

素因数の和:5480

約数の個数: 36

約数和(自身を含む): 351183252

約数和(自身を除く): 189894352

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 313, 626, 1252, 1565, 3130, 5153, 6260, 7825, 10306, 15650, 20612, 25765, 31300, 51530, 103060, 128825, 257650, 515300, 1612889, 3225778, 6451556, 8064445, 16128890, 32257780, 40322225, 80644450, 161288900]

約数ペア:

[(1, 161288900), (2, 80644450), (4, 40322225), (5, 32257780), (10, 16128890), (20, 8064445), (25, 6451556), (50, 3225778), (100, 1612889), (313, 515300), (626, 257650), (1252, 128825), (1565, 103060), (3130, 51530), (5153, 31300), (6260, 25765), (7825, 20612), (10306, 15650)]