259780280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{138181}}^1$

素因数の和:138239

約数の個数: 32

約数和(自身を含む): 596946240

約数和(自身を除く): 337165960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 138181, 276362, 552724, 690905, 1105448, 1381810, 2763620, 5527240, 6494507, 12989014, 25978028, 32472535, 51956056, 64945070, 129890140, 259780280]

約数ペア:

[(1, 259780280), (2, 129890140), (4, 64945070), (5, 51956056), (8, 32472535), (10, 25978028), (20, 12989014), (40, 6494507), (47, 5527240), (94, 2763620), (188, 1381810), (235, 1105448), (376, 690905), (470, 552724), (940, 276362), (1880, 138181)]