1285304860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{399163}}^1$

素因数の和:399202

約数の個数: 48

約数和(自身を含む): 3218858496

約数和(自身を除く): 1933553636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 399163, 798326, 1596652, 1995815, 2794141, 3991630, 5588282, 7983260, 9180749, 11176564, 13970705, 18361498, 27941410, 36722996, 45903745, 55882820, 64265243, 91807490, 128530486, 183614980, 257060972, 321326215, 642652430, 1285304860]

約数ペア:

[(1, 1285304860), (2, 642652430), (4, 321326215), (5, 257060972), (7, 183614980), (10, 128530486), (14, 91807490), (20, 64265243), (23, 55882820), (28, 45903745), (35, 36722996), (46, 27941410), (70, 18361498), (92, 13970705), (115, 11176564), (140, 9180749), (161, 7983260), (230, 5588282), (322, 3991630), (460, 2794141), (644, 1995815), (805, 1596652), (1610, 798326), (3220, 399163)]