289213250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{60887}}^1$

素因数の和:60923

約数の個数: 32

約数和(自身を含む): 569911680

約数和(自身を除く): 280698430

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4750, 60887, 121774, 304435, 608870, 1156853, 1522175, 2313706, 3044350, 5784265, 7610875, 11568530, 15221750, 28921325, 57842650, 144606625, 289213250]

約数ペア:

[(1, 289213250), (2, 144606625), (5, 57842650), (10, 28921325), (19, 15221750), (25, 11568530), (38, 7610875), (50, 5784265), (95, 3044350), (125, 2313706), (190, 1522175), (250, 1156853), (475, 608870), (950, 304435), (2375, 121774), (4750, 60887)]