278561282

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{7649}}^1$

素因数の和:7921

約数の個数: 16

約数和(自身を含む): 424116000

約数和(自身を除く): 145554718

約数列:

[1, 2, 131, 139, 262, 278, 7649, 15298, 18209, 36418, 1002019, 1063211, 2004038, 2126422, 139280641, 278561282]

約数ペア:

[(1, 278561282), (2, 139280641), (131, 2126422), (139, 2004038), (262, 1063211), (278, 1002019), (7649, 36418), (15298, 18209)]