639892012

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{977}}^1\times {\mathrm{2243}}^1$

素因数の和:3297

約数の個数: 24

約数和(自身を含む): 1136819376

約数和(自身を除く): 496927364

約数列:

[1, 2, 4, 73, 146, 292, 977, 1954, 2243, 3908, 4486, 8972, 71321, 142642, 163739, 285284, 327478, 654956, 2191411, 4382822, 8765644, 159973003, 319946006, 639892012]

約数ペア:

[(1, 639892012), (2, 319946006), (4, 159973003), (73, 8765644), (146, 4382822), (292, 2191411), (977, 654956), (1954, 327478), (2243, 285284), (3908, 163739), (4486, 142642), (8972, 71321)]