128935178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 209088000

約数和(自身を除く): 80152822

約数列:

[1, 2, 19, 38, 59, 118, 131, 262, 439, 878, 1121, 2242, 2489, 4978, 7729, 8341, 15458, 16682, 25901, 51802, 57509, 115018, 146851, 293702, 492119, 984238, 1092671, 2185342, 3393031, 6786062, 64467589, 128935178]

約数ペア:

[(1, 128935178), (2, 64467589), (19, 6786062), (38, 3393031), (59, 2185342), (118, 1092671), (131, 984238), (262, 492119), (439, 293702), (878, 146851), (1121, 115018), (2242, 57509), (2489, 51802), (4978, 25901), (7729, 16682), (8341, 15458)]