128935425

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{90481}}^1$

素因数の和:90513

約数の個数: 24

約数和(自身を含む): 224395360

約数和(自身を除く): 95459935

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 90481, 271443, 452405, 1357215, 1719139, 2262025, 5157417, 6786075, 8595695, 25787085, 42978475, 128935425]

約数ペア:

[(1, 128935425), (3, 42978475), (5, 25787085), (15, 8595695), (19, 6786075), (25, 5157417), (57, 2262025), (75, 1719139), (95, 1357215), (285, 452405), (475, 271443), (1425, 90481)]