15216280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1931}}^1$

素因数の和:2139

約数の個数: 32

約数和(自身を含む): 34428240

約数和(自身を除く): 19211960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1931, 1970, 3862, 3940, 7724, 7880, 9655, 15448, 19310, 38620, 77240, 380407, 760814, 1521628, 1902035, 3043256, 3804070, 7608140, 15216280]

約数ペア:

[(1, 15216280), (2, 7608140), (4, 3804070), (5, 3043256), (8, 1902035), (10, 1521628), (20, 760814), (40, 380407), (197, 77240), (394, 38620), (788, 19310), (985, 15448), (1576, 9655), (1931, 7880), (1970, 7724), (3862, 3940)]