189352120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{278459}}^1$

素因数の和:278487

約数の個数: 32

約数和(自身を含む): 451105200

約数和(自身を除く): 261753080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 278459, 556918, 1113836, 1392295, 2227672, 2784590, 4733803, 5569180, 9467606, 11138360, 18935212, 23669015, 37870424, 47338030, 94676060, 189352120]

約数ペア:

[(1, 189352120), (2, 94676060), (4, 47338030), (5, 37870424), (8, 23669015), (10, 18935212), (17, 11138360), (20, 9467606), (34, 5569180), (40, 4733803), (68, 2784590), (85, 2227672), (136, 1392295), (170, 1113836), (340, 556918), (680, 278459)]