74787879

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 109866240

約数和(自身を除く): 35078361

約数列:

[1, 3, 17, 43, 51, 67, 129, 201, 509, 731, 1139, 1527, 2193, 2881, 3417, 8643, 8653, 21887, 25959, 34103, 48977, 65661, 102309, 146931, 372079, 579751, 1116237, 1466429, 1739253, 4399287, 24929293, 74787879]

約数ペア:

[(1, 74787879), (3, 24929293), (17, 4399287), (43, 1739253), (51, 1466429), (67, 1116237), (129, 579751), (201, 372079), (509, 146931), (731, 102309), (1139, 65661), (1527, 48977), (2193, 34103), (2881, 25959), (3417, 21887), (8643, 8653)]