398989214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{977}}^1$

素因数の和:1244

約数の個数: 32

約数和(自身を含む): 655572960

約数和(自身を除く): 256583746

約数列:

[1, 2, 13, 26, 113, 139, 226, 278, 977, 1469, 1807, 1954, 2938, 3614, 12701, 15707, 25402, 31414, 110401, 135803, 204191, 220802, 271606, 408382, 1435213, 1765439, 2870426, 3530878, 15345739, 30691478, 199494607, 398989214]

約数ペア:

[(1, 398989214), (2, 199494607), (13, 30691478), (26, 15345739), (113, 3530878), (139, 2870426), (226, 1765439), (278, 1435213), (977, 408382), (1469, 271606), (1807, 220802), (1954, 204191), (2938, 135803), (3614, 110401), (12701, 31414), (15707, 25402)]