28871925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20261}}^1$

素因数の和:20293

約数の個数: 24

約数和(自身を含む): 50249760

約数和(自身を除く): 21377835

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 20261, 60783, 101305, 303915, 384959, 506525, 1154877, 1519575, 1924795, 5774385, 9623975, 28871925]

約数ペア:

[(1, 28871925), (3, 9623975), (5, 5774385), (15, 1924795), (19, 1519575), (25, 1154877), (57, 506525), (75, 384959), (95, 303915), (285, 101305), (475, 60783), (1425, 20261)]