251792865

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 475324200

約数和(自身を除く): 223531335

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 149, 153, 235, 255, 423, 447, 705, 745, 765, 799, 1341, 2115, 2209, 2235, 2397, 2533, 3995, 6627, 6705, 7003, 7191, 7599, 11045, 11985, 12665, 19881, 21009, 22797, 33135, 35015, 35955, 37553, 37995, 63027, 99405, 105045, 112659, 113985, 119051, 187765, 315135, 329141, 337977, 357153, 563295, 595255, 987423, 1071459, 1645705, 1689885, 1785765, 2962269, 4937115, 5357295, 5595397, 14811345, 16786191, 27976985, 50358573, 83930955, 251792865]

約数ペア:

[(1, 251792865), (3, 83930955), (5, 50358573), (9, 27976985), (15, 16786191), (17, 14811345), (45, 5595397), (47, 5357295), (51, 4937115), (85, 2962269), (141, 1785765), (149, 1689885), (153, 1645705), (235, 1071459), (255, 987423), (423, 595255), (447, 563295), (705, 357153), (745, 337977), (765, 329141), (799, 315135), (1341, 187765), (2115, 119051), (2209, 113985), (2235, 112659), (2397, 105045), (2533, 99405), (3995, 63027), (6627, 37995), (6705, 37553), (7003, 35955), (7191, 35015), (7599, 33135), (11045, 22797), (11985, 21009), (12665, 19881)]